Portable Combination Wrench Storage & Organization?

[oldschoolcraft]

I've never been able to put together a decent "mobile mechanics" toolset with respect to wrench organization. Most guys seem to just throw all their wrenches in one section of a toolbox and then sort them all by hand to find the one they need.

I'm aware of wrench rolls, but I never loved them. Seems like a lot of extra material. Time sunk in taking it out, opening it, spreading it, just to get one wrench. The fabric will get filthy with oil and grease unless you clean the wrenches off perfectly before putting them away. The Atlas46 seems interesting if I go this route:



Then there's the Tekton wrench organizer which I do own, and is something I want to love. It works well if the wrenches can't bounce around a lot. I have one in a packout drawer, and it's perfect for that. But, I want an overall toolkit smaller than a packout drawer. I've had this dump all of the wrenches out when it was put in a toolbag:



The Bucketboss Wrench Boss is interesting albeit cheap Chinese material with too many slots. Claims 10 pound max weight of tools and then has slots for 30 pounds of wrenches. I also would prefer a 3.5 gallon bucket to keep things from getting too large and heavy.



Shadow / Kaizen foam is a possibility but I've always hated those. Other ideas I've had is using Vim Magrails with some dividers to keep the wrenches organized and upright, secure the magrails with rivets to some toolbox/bucket/crate container.

I have an idea for something custom that will be beyond my current capability of fabricating, but imagine something like a bucket, with a series of small clips along the top that clip into the box end of a wrench, and maybe a magnet at the bottom to keep the open end from flopping around. Need a wrench, unclip it, and pull away from the magnet.

What I'd like is a full set of 8mm to 19mm with four SAE addins (3/8, 1/2, 9/16, 7/16) that are different enough. 16 wrenches total would be great. I could skip 9mm if I could only fit 15. I would add in 11/32 if I could fit 17.

I fantasize about a first order retrievability mobile toolbox. And I have 3/8" drive sockets in shallow and deep, same sizes. The other stuff is easy to organize. But there isn't anything great for wrenches and sockets outside of some kaizen foam that I dont like.


A custom-made high end materials bucket boss sized for a 3.5 gallon bucket or for a Packout Crate would be amazing. Or a custom 3D printed tray set for packout organizers. I'm also playing with the idea of the aircraft cable keyrings, but with a magnetic enclosure, and I keep around 4 to 5 wrenches on each one and then cut down the physical things I need to keep sorted down to 3 to 4 instead of 16. Maybe put the four SAE ones together.

What has everyone here come up with?

 

[GeoBruin]

I've never been able to put together a decent "mobile mechanics" toolset with respect to wrench organization. Most guys seem to just throw all their wrenches in one section of a toolbox and then sort them all by hand to find the one they need.

I'm aware of wrench rolls, but I never loved them. Seems like a lot of extra material. Time sunk in taking it out, opening it, spreading it, just to get one wrench. The fabric will get filthy with oil and grease unless you clean the wrenches off perfectly before putting them away. The Atlas46 seems interesting if I go this route:



Then there's the Tekton wrench organizer which I do own, and is something I want to love. It works well if the wrenches can't bounce around a lot. I have one in a packout drawer, and it's perfect for that. But, I want an overall toolkit smaller than a packout drawer. I've had this dump all of the wrenches out when it was put in a toolbag:



The Bucketboss Wrench Boss is interesting albeit cheap Chinese material with too many slots. Claims 10 pound max weight of tools and then has slots for 30 pounds of wrenches. I also would prefer a 3.5 gallon bucket to keep things from getting too large and heavy.



Shadow / Kaizen foam is a possibility but I've always hated those. Other ideas I've had is using Vim Magrails with some dividers to keep the wrenches organized and upright, secure the magrails with rivets to some toolbox/bucket/crate container.

I have an idea for something custom that will be beyond my current capability of fabricating, but imagine something like a bucket, with a series of small clips along the top that clip into the box end of a wrench, and maybe a magnet at the bottom to keep the open end from flopping around. Need a wrench, unclip it, and pull away from the magnet.

What I'd like is a full set of 8mm to 19mm with four SAE addins (3/8, 1/2, 9/16, 7/16) that are different enough. 16 wrenches total would be great. I could skip 9mm if I could only fit 15. I would add in 11/32 if I could fit 17.

I fantasize about a first order retrievability mobile toolbox. And I have 3/8" drive sockets in shallow and deep, same sizes. The other stuff is easy to organize. But there isn't anything great for wrenches and sockets outside of some kaizen foam that I dont like.


A custom-made high end materials bucket boss sized for a 3.5 gallon bucket or for a Packout Crate would be amazing. Or a custom 3D printed tray set for packout organizers. I'm also playing with the idea of the aircraft cable keyrings, but with a magnetic enclosure, and I keep around 4 to 5 wrenches on each one and then cut down the physical things I need to keep sorted down to 3 to 4 instead of 16. Maybe put the four SAE ones together.

What has everyone here come up with?

I know you don't like kaizen, and there is only room for this if you have enough space, but it's hard to beat for retrievability.

 

[richfinn]

Spring latch "D rings" work best for keeping ring/box spanners organized in a tool bag IMO, everything else just takes up too much space.

I only carry a few essential small wrenches in dedicated pockets in my Veto Pro Pac (although I keep a fairly full set in the van)

 

[oldschoolcraft]

I know you don't like kaizen, and there is only room for this if you have enough space, but it's hard to beat for retrievability.

Looks like you are using something in a drawer system. My Tekton Organizer I listed in my original post works just fine in packout drawers. But packout drawers are huge, and I can't use them by themselves. There's no handle. If Packout put out a half or 2/3 sized packout with drawers and a handle, I'd be all over that!

 

[ForrestT]

I know you said no to wrench rolls, but I like the bucket boss brand of wrench rolls for mobile storage and use. Harbor freight wrench rings work too.

 

[oldschoolcraft]

I know you said no to wrench rolls, but I like the bucket boss brand of wrench rolls for mobile storage and use. Harbor freight wrench rings work too.

The wrench rings look interesting. I haven't seen these before, thanks for sharing. I can't see how the closure mechanism works from the picture but they are $2 so I'll swing by HF and pick one up.

 

[carmantl]

I've been using the HF rings for over 2 decades and haven't found anything better and for 2 bucks its a no-brainer for me.

 

[Robinson1]

Here’s the top two trays of a cheap cantilever box I set up for working on farm equipment. Metric 8-19 in one side and SAE 1/4-15/16 in the other side. It saves space and I’ve found it doesn’t really slow down my work flow. I’ve got some larger wrenches in the bottom of the box as well. When I set this up I intended for it to be a mobile kit to handle breakdowns and general maintenance but it’s pretty much turned into my go to set of mechanics tools. I find myself working out of it even in the shop.

The other picture is a cheap set of Duratech metric wrenches I bought as spares. I’ve come to really like that style of holder as it’s easy to grab and take the whole rack. The down side is they take up a lot of space in a bag or hand carry box but if you’re just tossing them in a truck tool box or into the floor board they work well. This set usually hangs on a nail above my work bench. It’s what I grab if I know I’ll need a second set of wrenches

The final picture is a Craftsman set available at Lowes. This is a sat that stays on my truck. I’ve had a set of these for several years now and after thousands and thousands of miles of rough rural roads I’ve never had a wrench come out of the holder.

Another cheap solution is to bend your own wrench rings out of 10 ga copper wire. I don’t have a picture handy but they end up looking like a cross between the harbor freight wrench rings and a giant safety pin. This is what I do for applications where I want tools but don’t necessarily care if they are super fast or convenient to retrieve. This is how I’d store the wrenches kept on a tractor for field adjustments and random repairs.

 

[Fedwrench]

Zippered canvas/nylon pouches. get a red one for SAE and a blue one for Metric.

Klein Tools Tool Bag, Stand-up Zipper Bags, 7-Inch and 14-Inch, 2-Pack, Gray/Black, Blue/Black 55559 | Zoro

Order Klein Tools Tool Bag, Stand-up Zipper Bags, 7-Inch and 14-Inch, 2-Pack, Gray/Black, Blue/Black, 55559 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.

www.zoro.com

You could also get a tool roll with zippered pouches for everything. There are many versions of these. Some are quite nice.

Bucket Boss Tool Pouch, Wrench Roll, Brown, Canvas, 6 Pockets 74004 | Zoro

Order Bucket Boss Tool Pouch, Wrench Roll, Brown, Canvas, 6 Pockets, 74004 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.

www.zoro.com

 

[Robinson1]

Zippered canvas/nylon pouches. get a red one for SAE and a blue one for Metric.

Klein Tools Tool Bag, Stand-up Zipper Bags, 7-Inch and 14-Inch, 2-Pack, Gray/Black, Blue/Black 55559 | Zoro

Order Klein Tools Tool Bag, Stand-up Zipper Bags, 7-Inch and 14-Inch, 2-Pack, Gray/Black, Blue/Black, 55559 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.

www.zoro.com

You could also get a tool roll with zippered pouches for everything. There are many versions of these. Some are quite nice.

Bucket Boss Tool Pouch, Wrench Roll, Brown, Canvas, 6 Pockets 74004 | Zoro

Order Bucket Boss Tool Pouch, Wrench Roll, Brown, Canvas, 6 Pockets, 74004 at Zoro.com. Great prices & free shipping on orders over $50 when you sign in or sign up for an account.

www.zoro.com

I have several of the Klein zipper bags their major down fall is any wrench bigger than about 7/8 isn’t going to fit because they are too long. For what I work on 15/16 and 1-1/8 are must haves. These bags leave those two wrenches floating around in the cab somewhere or in another bag/box separate from the Klein bag. Of course if you were dealing with smaller wrenches they work great. The Klein bags really shine for sockets and spare bolts/pins

 

[Hakeem]

Wrench rolls are pretty much the standard for mobile wrench use from what I’ve seen—and for good reason. Unclasp, unroll, and you’ve got your whole set at your fingertips. When you’re done, roll them back up and your wrenches are securely contained in a small footprint. Missing wrenches are immediately obvious, something you don’t get with the D-ring solution.

Stash a rag to wipe them off if you’re concerned with grease stains.

 

[KnurledNut]

.50 cal. can here. Wrenches stay in a removable handmade two-drawer sheet metal mini box. Custom sheet metal dividers inside. Houses 5.5-18mm. 1/4-3/4” + stubby 7/8-15/16”. Select line wrenches and crowsfeet, misc.

I keep XXL combos in a separate 14-slot Ergodyne Arsenal 5872 (gray 1680d ballistic poly) extra-deep wrench roll. One of the best made I’ve ever seen at its price point. (Not recommended for regular length wrenches. It’ll swallow them.) Grab and go.

 

[tyyost]

I have a set of wrenches in a holder and then secured with a velcro cable management strap. It is similar to the Tekton you posted, and it keeps the wrenches in the rack when traveling.

 

[Wiz02]

I've never seen the HF D rings before and they look like a better solution than Dad's which was a length of all thread with a nut and fender washer to hold the large wrenches and just a wing nut or maybe a nut and washer on the small wrench side. Can't remember if he tack welded the fender washer to the nut or not.

It was a cheap, compact solution, but you were always unthreading and threading a nut to access a wrench.

 

[Kurt4440]

My father had a set of combination wrenches with this style clamp/clip to hold them together. He kept them in his travel tool box. I keep my travel wrenches on a Harbor Freight spring clip.

 

[shakenfake]

Wrench ring or roll is the best.

 

[magtl]

I've never been able to put together a decent "mobile mechanics" toolset with respect to wrench organization. Most guys seem to just throw all their wrenches in one section of a toolbox and then sort them all by hand to find the one they need.

I'm aware of wrench rolls, but I never loved them. Seems like a lot of extra material. Time sunk in taking it out, opening it, spreading it, just to get one wrench. The fabric will get filthy with oil and grease unless you clean the wrenches off perfectly before putting them away. The Atlas46 seems interesting if I go this route:



Then there's the Tekton wrench organizer which I do own, and is something I want to love. It works well if the wrenches can't bounce around a lot. I have one in a packout drawer, and it's perfect for that. But, I want an overall toolkit smaller than a packout drawer. I've had this dump all of the wrenches out when it was put in a toolbag:



The Bucketboss Wrench Boss is interesting albeit cheap Chinese material with too many slots. Claims 10 pound max weight of tools and then has slots for 30 pounds of wrenches. I also would prefer a 3.5 gallon bucket to keep things from getting too large and heavy.



Shadow / Kaizen foam is a possibility but I've always hated those. Other ideas I've had is using Vim Magrails with some dividers to keep the wrenches organized and upright, secure the magrails with rivets to some toolbox/bucket/crate container.

I have an idea for something custom that will be beyond my current capability of fabricating, but imagine something like a bucket, with a series of small clips along the top that clip into the box end of a wrench, and maybe a magnet at the bottom to keep the open end from flopping around. Need a wrench, unclip it, and pull away from the magnet.

What I'd like is a full set of 8mm to 19mm with four SAE addins (3/8, 1/2, 9/16, 7/16) that are different enough. 16 wrenches total would be great. I could skip 9mm if I could only fit 15. I would add in 11/32 if I could fit 17.

I fantasize about a first order retrievability mobile toolbox. And I have 3/8" drive sockets in shallow and deep, same sizes. The other stuff is easy to organize. But there isn't anything great for wrenches and sockets outside of some kaizen foam that I dont like.


A custom-made high end materials bucket boss sized for a 3.5 gallon bucket or for a Packout Crate would be amazing. Or a custom 3D printed tray set for packout organizers. I'm also playing with the idea of the aircraft cable keyrings, but with a magnetic enclosure, and I keep around 4 to 5 wrenches on each one and then cut down the physical things I need to keep sorted down to 3 to 4 instead of 16. Maybe put the four SAE ones together.

What has everyone here come up with?

This set up is for an aircraft technician.

 

[AJHD]

This set up is for an aircraft technician.

That's a cool looking setup. Is that yours, or do you have more pictures? Looks like an older Snap On box.

 

[rust in the eye]

Roll ups are the answer, especially if you don't like rattles. Compact and organized.
Bought those HF rings years ago, seemed like a good idea but wasn't pleased and tossed them out.

 

[oldschoolcraft]

This set up is for an aircraft technician.

I've been really curious about those toolboxes for a while. I forget the nickname, something like Dog Leash?

What I like about them is you get a low profile volume size, so I could put it in my car to take somewhere. But it has the handle or leash to pull it so you can use wheels and not have to carry it since it will be very heavy.

Only have to lift it twice, once to get it into my car, and once to get it out of my car. And then two more times to get it home, so four times haha.

 

[magtl]

That's a cool looking setup. Is that yours, or do you have more pictures? Looks like an older Snap On box.

I made it for my grandson who is an A&P technician. He just started with a major airline. Everything in the box is pretty much held in place with Magrails. I invented the Magrail and the Milbar Reversible wire twister he will be using. The Magrail was actually designed for the aircraft technician but has become popular with other technicians as well. My background also is an aircraft technician so I guess that’s why my tools lean in that direction. Sorry no more pictures, the box is now at O’Hare.

 

[Etchase]

Stanley Black and Decker brands and others have this style I like.

 

[Steve_P]

I have dedicated wrench rolls for portable use. But I'm not using them daily, just a few times a year. For daily use working out of a dedicated box with drawers, then I'd want something different like foam or racks in a drawer.

 

[magtl]

That's a cool looking setup. Is that yours, or do you have more pictures? Looks like an older Snap On box.

Found another picture. This is what is in the top tray.. The wrenches were an issue because wrench handles are different widths. I milled a channel in a block of Delrin for each individual wrench handle to maximize space. That allowed each wrench to have its own slot yet keeping them very close.

 

[oldschoolcraft]

I invented the Magrail and the Milbar Reversible wire twister he will be using.

What?!? You invented the magrail! That's awesome! Did you have some connections to Vim Tools, or go through their inventor program? Would love to hear more about that!

 

[Kkmk]

Similar to the wire spanner rings, its very common in my circles to use a piece of 6mm Festo air line and push in connector to loop your spanners together. Cheap. Convenient.

Useful to keep them all in a bundle in a pocket of a bag where otherwise the tiny spanners would fall down out of reach.

 

[budget76]

I have these, and nicer metal style ones too. I want to like them, but I kind of hate them. They take up WAY too much space in my toolbox

I do like how I can grab teh whole set and walk somewhere. but only if they stay flat - easy to knock the wrenches loose

I may have to throw them on rings and ditch the racks. Slightly less convenient to grab quickly, but it may be worth the tradeoff

 

[magtl]

What?!? You invented the magrail! That's awesome! Did you have some connections to Vim Tools, or go through their inventor program? Would love to hear more about that!

Back in the 90's I sent a prototype of an earlier version of the Magrail to Wright Tools. A V.P. at Wright sent me a letter saying it was the best socket holder he had seen, but Wright didn't make socket holders. He said I should contact Vim Tools. I sent that letter to Vim Tools and they contacted me.

 

[bobg03]

I made it for my grandson who is an A&P technician. He just started with a major airline. Everything in the box is pretty much held in place with Magrails. I invented the Magrail and the Milbar Reversible wire twister he will be using. The Magrail was actually designed for the aircraft technician but has become popular with other technicians as well. My background also is an aircraft technician so I guess that’s why my tools lean in that direction. Sorry no more pictures, the box is now at O’Hare.

That is a cool looking set-up. I'm no expert in Aviation Repairs but I thought y'all had a rule that your boxes had to be "shadowed" (sic) to ensure all tools were back in place and none left on the aircraft after work was performed.

 

[AEAdam]

@oldschoolcraft you are overthinking everything. Try to simplify. Tool rool is the answer. There is nothing better for compact storage. Atlas46 is expensive and unneccessarily militaristic. If it were me, I would want a plain canvas roll with a soft rubber backing that I could lay on a curved body panel and have it stay. A series of magnets could also work. My wrench rolls are plain white canvas. They get (got) dirty. That's just how it goes.

Maybe a better way to think about it: When I've worked in what I call austere conditions, the tool storage doesn't double as tool accessibility the way my tool boxes do. The paradigm is different. The tools get basically retrieved, upacked, used, temporarily placed somewhere while working, then wiped down and put away. I'm not slipping wrenches into and out of the wrench roll. It's work ergonomics don't matter. Its just storage. Does that help?

Next question could be, what are the solutions for temporary storage for accessibility? For me, its a combination of things. My trusty Craftsman Fender cover is nice to have. Mag dishes. Kept empty 1/2" dr Mechanics Time Savers socket holder (that I use for a few retrieved sockets, extensions, and I stick bolts in etc). I need something else for wrenches and screwdrivers, prybars possibly magnetic. I tend to use shop rags. I'd also like a tiny wheely cart, smaller than an Assistent. Something the size of a my brake creeper maybe. When I'm home but outside my shop, its a rubbermaid janitor's cart.

 

[oldschoolcraft]

Maybe a better way to think about it: When I've worked in what I call austere conditions, the tool storage doesn't double as tool accessibility the way my tool boxes do. The paradigm is different. The tools get basically retrieved, upacked, used, temporarily placed somewhere while working, then wiped down and put away. I'm not slipping wrenches into and out of the wrench roll. It's work ergonomics don't matter. Its just storage.

Funny you say that, I had a similar thought this week. When looking at the wrench rings, they seem great for storage, nothing to break or get dirty, as compact as possible since the wrenches are lying next to each other with no material or anything between them. But terrible to work from.

The idea I had is a wrench ring combined with some mat (maybe magnetic) with outlines of the wrenches and size markings. So you get to the job site, you unroll this mat and you take your wrenches off the ring, put the wrenches on their individual outlines on the "work mat". As you use them you return them to the exact spot on the mat.

The mat having the layouts of all wrenches with sizes helps for accountability. Like kaizen foam so when you put them back away, you know what's missing. And you can put them back away in order again, since they are in order on the mat.

It sounds like a lot of work, but I think it would be pretty fast. Just undo the wrenches off the ring, lay them out in order on the mat over their outlines, and then when dont, pick them back up in the same order and put them back on the ring.

The hardest part would be designing and having this mat made. The target demographic is probably small, not sure how many real mobile mechanics there are out there that are working in one spot long enough to do this. Since if you just needed one or two wrenches for one job, digging through a pile of wrenches in a toolbox might be faster.

 

[Jaysmith10]

 

[magtl]

That is a cool looking set-up. I'm no expert in Aviation Repairs but I thought y'all had a rule that your boxes had to be "shadowed" (sic) to ensure all tools were back in place and none left on the aircraft after work was performed.

Every tool the box has its own spot, so you can see if one is missing.. As far as I know the military requires showing but the airlines do not.

 

[rust in the eye]

Every tool the box has its own spot, so you can see if one is missing.. As far as I know the military requires showing but the airlines do not.

Tool inventory after a job is deriguere, no.

 

[JradM]

Stanley Black and Decker brands and others have this style I like.

That's my favorite too. On mine the clip never stays closed, but that doesn't matter since the wrenches stay put and retrieval is still fast and easy.

The V-series ratchet wrenches go on sale semi-annually for an insanely good price it seems.



Those are such nice wrenches. However - they skip some sizes which will drive some people mad.

In my portable kit, I just add a pliers wrench and move on. I don't need every tool in the house to get some impromptu work done and the pliers wrench is the perfect addition in case I need a size I didn't bring, a backer wrench in the same size or use it to do the things only the pliers wrench does.

 

[AJHD]

Tool inventory after a job is deriguere, no.

Depends on the employer. It's more of a company policy rather than FAA regulations. However, they take Foreign Object Damage/Debris (FOD) very seriously either way.

Almost nothing is personal property here (its all company provided) ... The company supplied boxes with company tools on the floor of my shop are all "shadow foamed" and inventoried routinely. Beyond it being my responsibility to manage said toolboxes, it's also the responsibility of the tech checking out the box to account for all tools when the box is checked out and being checked back in. There is a log for and inside each box for this purpose, and an inventory list as well.

Most of my tool crib is also "shadow foamed" and both audited routinely but also, as the crib attendant, it's my responsibility to account for all tools in the crib at the beginning and end of my shift. I also manage supplies, chemicals, expiration dates, tool calibration, etc.

We use tool chits, and we have a spreadsheet for everything, each box, the crib, chemicals, etc. and again we have paperwork (logs) for most things as well. The FAA and internal company inspectors also do their job.

 

[rust in the eye]

An A&P mechanic friend told me the dark humor joke around their shop was when a tool went missing not to worry as it would turn up in the wreckage.

 

[AEAdam]

Found pics of one of the sets I mentioned.

This is 1/4" drive metric. There are a few stubby ratchet wrenches with the flashlight. Shallows at right, semi deeps left. Knipex cutters, duck bills, and needle nose are in the stack. I thought that was clever.

I actually used this kit a couple places- vacation in Cornwall was one. I carried this set always because the stuff I could fix with this was stuff I COULD fix somewhere remote. I had 3/8" and 1/2" versions of this, outfitted slightly differently, but same concept. Sockets, screwdrivers, pliers at least. Wrenches were in rolls as discussed.



I bought the cases in the Container store. Not super expensive and a little more robust than the cheap clear ones.

Thinking back - this was 10 years ago, I think I had the sets color coded (for some reason). 1/4" drive (small tools) were all red (above), 3/8" was yellow, 1/2" was orange. Example, the full sized screwdrivers were all yellow (the set I've had for years). In the 1/2" drive kit, there were no screwdrivers. But there were prybars, and they were orange. My SHLF80A was orange.

Just in case this inspires anyone....The colors weren't really helpful, but working in the UK, in different conditions, I appreciated COLORS to help me find stuff I dropped (on the ground, in leaves, in dark interiors etc).

 

[AJHD]

That's an interesting idea. I like it.

 

[AEAdam]

An A&P mechanic friend told me the dark humor joke around their shop was when a tool went missing not to worry as it would turn up in the wreckage.

That's no joke. Before I started, someone left an Allen key in a helicopter transmission. That vehicle flew less than 10 miles before killing its flight crew. Allen keys are really hard and a really bad shape (like worse than a bolt). I suggested masking their ends and painting them all orange. We didn't do that and I'll bet it was political because I thought that was a darned good idea. Not easy to see Allen wrenches.

I know more than a few machinists who started up mills or drill presses with the chuck key still in it. They should be orange as well.

I lost one of my Snap On LED lights on a test drive. It went dead in a wheel well and I buttoned everything out and took it out on a test drive. I remember hearing it fall off and I knew right then what I had done.

Yesterday I finally swapped the water pump on my dodge Durango. Lost my 3/8" 10mm. Looked everywhere. I had mistakenly put it in the spot for my 13mm. I found it when I started putting everything back.

Tool colors, organization, working clean, all contribute to faster safer job. Take it seriously, even if you aren't building helicopters.