Lucid Moments
Well-known member
Weird. I find it on Amazon, but not Tekton's website. Home Depot lists it but doesn't have it in stock. May out of manufacture and the listing on Amazon is old stock someone still has.Tekton 7558 39 piece tap die set
Weird. I find it on Amazon, but not Tekton's website. Home Depot lists it but doesn't have it in stock. May out of manufacture and the listing on Amazon is old stock someone still has.Tekton 7558 39 piece tap die set
I know a guy who told me he had an employee that they wouldn't let tap anything less than M30 because of the breakage rate.Good or bad it really has a lot to do with the person doing the threading, you need the right touch. I’ve had good guys just destroy anything you give them, i only let certain guys use taps, dies or drills, even though the company supplies them. I have a millwright that will wear out a tap, never breaks them, they’re not for everyone.
Lang makes a nice rethreader kitWe run Champion sets. I love buying good taps too, GTD, Greenfield and have plenty in the shop along with loose drill bits but like on the road in the service truck it's real nice to have sets you can just toss the whole thing back in the box.
Everyone should have a rethread kit too, Lang/Craftsman/CTA/Jawco/truck. Use that all the time.
I've got a Mastercraft set I've used for 25 years. I doubt it's any better than the Harbour Freight one you're contemplating.
I completely understand the sentiment others have expressed about cheap taps causing headaches when they break. My Mastercraft taps are brittle and I've broken some over the years. I now have two Mastercraft sets - I bought the second because it was cheaper than replacing my broken taps in the first.
My point isn't to dismiss what most people are saying, but to suggest you can get work done with cheap taps too. You need to make sure the hole is sized right, not tap too far before you back up to break the chips, clean out the hole more often, etc. Just be gentle.
In my case, I've also added higher-quality taps for the sizes I use most (m4-m8), as a specific project arose - or just when I spy a deal.
BUT - it does **** when you break a tap in a hole. Those brittle taps are brittle because they're hard - good luck drilling.
I have 2 sets of HF taps/dies, one set in a thin tin box and the other the yellow/nitrated set.Ok I got it. No cheap tap sets. I'm going to lowes today - I'll take a look at the Irwin/Hanson tap & die sets.
Why doesn't anyone just sell a tap set? I don't need the dies. And I already have a tap wrench for chasing steam radiator threads.
So yeh, "required" drills represent a 75% thread, so go on the smaller side of drill size that you have or buy the tap and drill sets.A lot of great advise here. One thing mentioned above that got my attention is the required tap drill bits. My drill bits are the standard Home depot Milwaukee red box impact ready bits. Been working great on my drill press for drilling metal. These sets don't have the required size drill bit for the taps I'm currently in need of:
10-24 NC requires a #25 drill bit. The closest I have is a 5/32
7/16-20 NF requires a 25/64 bit. The closest I have is a 3/8 bit.
Will my bits work for tapping the threads I need or am I better off buying the tap and drill bit combo in the sizes I need.
Thanks.
BTW, I have 2 tap wrenches from working on steam radiator plugs - one less thing to buy
You kind of need to feel it to tell if you're pushing a tap too hard - it depends what material you're tapping. E.g. you can be quite a bit too small on the hole and still tap into plastic, mild steel is less forgiving. It also depends if you're tapping through something 1/8" thick or 1/2" thick.A lot of great advise here. One thing mentioned above that got my attention is the required tap drill bits. My drill bits are the standard Home depot Milwaukee red box impact ready bits. Been working great on my drill press for drilling metal. These sets don't have the required size drill bit for the taps I'm currently in need of:
10-24 NC requires a #25 drill bit. The closest I have is a 5/32
7/16-20 NF requires a 25/64 bit. The closest I have is a 3/8 bit.
Will my bits work for tapping the threads I need or am I better off buying the tap and drill bit combo in the sizes I need.
Thanks.
BTW, I have 2 tap wrenches from working on steam radiator plugs - one less thing to buy
To answer your question, IMO, just buy the two sets you need. That way you know you are starting with both new and sharp bits and taps.A lot of great advise here. One thing mentioned above that got my attention is the required tap drill bits. My drill bits are the standard Home depot Milwaukee red box impact ready bits. Been working great on my drill press for drilling metal. These sets don't have the required size drill bit for the taps I'm currently in need of:
10-24 NC requires a #25 drill bit. The closest I have is a 5/32
7/16-20 NF requires a 25/64 bit. The closest I have is a 3/8 bit.
Will my bits work for tapping the threads I need or am I better off buying the tap and drill bit combo in the sizes I need.
Thanks.
BTW, I have 2 tap wrenches from working on steam radiator plugs - one less thing to buy
That's what I ended up doing. I got a hansen 10-24 and 3/8-16 tap. I drilled out a 1/2 square metal rod and tapped them for practice. Going forward and backwards and reoiling frequently. I even pulled the tap out to wipe off the metal chips in the flutes. The 10-24 tap felt like it was going to snap, but never did. The 3/8-16 tap went thru like a champ.To answer your question, IMO, just buy the two sets you need. That way you know you are starting with both new and sharp bits and taps.
Looks goodThat's what I ended up doing. I got a hansen 10-24 and 3/8-16 tap. I drilled out a 1/2 square metal rod and tapped them for practice. Going forward and backwards and reoiling frequently. I even pulled the tap out to wipe off the metal chips in the flutes. The 10-24 tap felt like it was going to snap, but never did. The 3/8-16 tap went thru like a champ.
My application will only require 1/4 depth tapping, so I think I should be fine.
Thanks for the help guys.
How do you measure how deep the chamfer should be?Looks good
Just a suggestion
Chamfer the hole before tapping, the tap will start easier, and if done after tapping it could mess up the threads.
jmo
Your words mirror my my thoughts. After knackering threads in the softest aluminum on earth that Ford used on an intake manifold which left me dead in the water trying to install a egr valve or pulling the threads in an aluminum alternator housing, it was time for a set. Enough of the "onesy-twosey- do I have the right size" ********. Bought a 60 piece carbon steel SAE&metric tap and die set. It's made in Japan and it's comparable to Hanson and it's "good enough" and most important it's there when needed. With all of the tool aficionados on this board who buy some pretty pricey tools,I hear the "buy once,cry once" mentioned. That's what I did. It cost me $112 at the local hardware store and I never looked back.i have not chimed in on one of these threads for a while so here goes.
for some reason people think tap and die sets are some magical mystery and they are somehow different than any other tool and that other rules apply. it is rare to hear someone recommend that one go out and buy one wrench, one socket or one drill bit to start assembling a set of tools. you sometimes hear someone recommend that one should buy one premium branded/priced premium wrench or socket but that is a different story.
that is exactly what you hear about taps and dies though. buy only the size you need, buy the best available, end of story. people rant about other tool sets skipping sizes but buy singles of taps and dies. i think that is not a real good answer.
when asked, i tell people to buy sets and here is why.
1. buy a set to be prepared. if you only have a few sizes, it is only a matter of time until you don't have the size you need or something needs to be drilled and tapped to a larger size.
2. buy a set for storage. taps should be stored in an organized clean, dry and protected manner. a set will allow them to be stored as such, when organized in a set it is easier to find the correct size, inventory when missing and store them in a clean protected storage device which you will get with a set. tap and die sets are not meant to be stored in a baby food or peanut butter jar.
3. buy a set that fits your needs. if every tool you own is made in india and bought at the dollar store you may be able to get by with a 15 dollar tap and die set. if every tool you own is made in usa and of a premium brand then you probably won't be happy with anything less than premium taps and dies.
i have sets of irwin, vermont american and ace and honestly they do me just fine. i never know exactly what i need until i need it so i need sets. other than large pipe sizes i don't think i have had a size when needed. i have some sizes i have not used or rarely used but i still want them to be prepared. something you won't have buying onesy twosies. if you want to replace lost or broken bits with better stuff, i advise to do it but for occasional use a relatively complete set will be the best value and fit for most people.
use them with a bit of caution and care and they will serve you well. run your tap gorilla fisted and crooked down a dry hole and your experience may vary. of course that can be said about a lot of things..........
Good question.How do you measure how deep the chamfer should be?
I mentioned to get a good set early on this thread, as a contractor and do it your selfer I know it’s just a matter of time till you need the ones you don’t have. I dedicated a5 drawer cabinet to taps, dies, easy outs, helicols, bolt and screws extractors, you just never know what you’re going to need and it’s either late at night or out of stock, i like to be prepared. I like to start with a set and add on from there.Your words mirror my my thoughts. After knackering threads in the softest aluminum on earth that Ford used on an intake manifold which left me dead in the water trying to install a egr valve or pulling the threads in an aluminum alternator housing, it was time for a set. Enough of the "onesy-twosey- do I have the right size" ********. Bought a 60 piece carbon steel SAE&metric tap and die set. It's made in Japan and it's comparable to Hanson and it's "good enough" and most important it's there when needed. With all of the tool aficionados on this board who buy some pretty pricey tools,I hear the "buy once,cry once" mentioned. That's what I did. It cost me $112 at the local hardware store and I never looked back.
As you mentioned, caution is required. As a DIYer, to me, beyond tap quality, technique and lots of lube will see you through most times. It's nice that a tap announces it's limits by twisting a little without breaking. I've broke a few that didn't. Just my .02.
That's impressive. You certainly have your bases covered.I mentioned to get a good set early on this thread, as a contractor and do it your selfer I know it’s just a matter of time till you need the ones you don’t have. I dedicated a5 drawer cabinet to taps, dies, easy outs, helicols, bolt and screws extractors, you just never know what you’re going to need and it’s either late at night or out of stock, i like to be prepared. I like to start with a set and add on from there.