Diamabrush Hand Tool

[LegacyIndustrial]

Diamabrush Hand Tool for Angle Grinder

Diamabrush has released a new hand tool for concrete prep, mastic removal, paint removal, etc... It fits on either a 4.5" or 7" grinder.

This new head will not leave kiss marks in your floor like a cup wheel will. We get 3-4 calls a week asking if our coatings will cover the mess the DIY made of the floor with a cup wheel marking and digging into the floor. Consider this product for your floor project.



Link: http://legacyindustrial.net/cart/hand-tool-for-removalprep-p-233.html

 

[elise111]

Hello Scotty, these look great, but also a bit tall. How do these fit into the Bosch 1773AK grinders? Will they keep the brush/curtains above the surface and prevent the vacuum from collecting the dust?

 

[LegacyIndustrial]

Elise111:

They are awesome. Depending on your shroud you will need to add a spacer (washers) or drop down the fabric rim (if you have one). We are working with Situp Products, Dustless technologies and a few others to supply an economical shroud in the mean time. The prep/removal tool is not as tall as the prep-tool (ment for verticals).

This product is exactly what the garage sector of the marketplace needed and I am so glad it came when it did. We are blowing through them.

 

[Roger555]

I am in the midst of researching/preparing for my first epoxy floor install and have been dreading the the prep but this Diamabrush looks promising!

My garage floor was painted with a cheap grey 1 part epoxy that is wearing through everywhere. With this tool would I just use it right over the existing paint probably? How long (approximately ) will one of these last before the blades wear out?

Hopefully I would at least be able to get through a 24x20 floor at that price?

I do have a 4.5" harbor freight grinder any idea if its compatible?

 

[stoveboltgunnut]

how much use can I expect to get out of this tool? Will one be enough to prep a 24x30 slab?

 

[gkron]

I had high hopes for this tool. I bought the 7" one directly from the manufacturer (not legacy industrial) to strip off 650 sq ft. of an existing 100% solids epoxy floor and prep the concrete. It worked for 125 sq ft and the blades were shot. I then emailed the manufacturer to report my results as he promised it would last for the entire job. He responded with his phone number. I called left a message and never got a return call back. I feel like it might have lasted if the concrete was bare though. Just reporting my experience with the tool for those thinking about purchasing.

 

[LegacyIndustrial]

I had high hopes for this tool. I bought the 7" one directly from the manufacturer (not legacy industrial) to strip off 650 sq ft. of an existing 100% solids epoxy floor and prep the concrete. It worked for 125 sq ft and the blades were shot. I then emailed the manufacturer to report my results as he promised it would last for the entire job. He responded with his phone number. I called left a message and never got a return call back. I feel like it might have lasted if the concrete was bare though. Just reporting my experience with the tool for those thinking about purchasing.

The tool works best at half speed on a variable speed grinder.
You didn't mention if you used a variable speed unit but I am curious to find out.

On full speed you are doin more damage to the tooling then you are removing material.

 

[gkron]

rigid angle grinder was used...manufacturer said nothing about variable speeds nor did the directions that came with it. All it said was use wet or dry. They also said it would take about 2 hours to complete the job...not even close. I'm not here to bash the product. I'm sure it works nicely for a fresh bare floor. If there is a quality product already down on the floor don't expect it to work wonders. A walk behind edco grinder was rented instead and that thing couldn't even get all the old epoxy off. I can tell you this though never again will there be an attempt to grind down the floor. It was a huge pain in the *** and expensive.....floor looks great though.

 

[gkron]

Just wanted to provide an update on this. Steve at diamabrush saw my comments posted in this thread and called to discuss what happened and is providing me with a full refund. He even offered to send me new blades so I could try again. I declined the blades as I hope to never have to do the floor again. He also said they are about to launch the product at all the home depots for $55 a day. If I was going to do another floor I'd give them another shot. Not many companies would stand behind their product like this. Its all a customer can ask for.

 

[Shea]

I actually used these to prep my kitchen floor for the limestone tile I laid down. The concrete had all kinds of mastic that needed to be removed that was left over from the wood floor I took out. It worked like a charm on 150 sf. of floor. Keep in mind that you still will need a cupped diamond wheel if you have any high spots or ridges that need to be taken down.

 

[JonnyC]

I'm looking to purchase the 7" tool. Did you happen to start stocking any dust shrouds as well? I'm starting to shop around and there are very few economical choices for the 7" grinders.

 

[LegacyIndustrial]

Jonny:

Diamabrush will have a proprietary shroud offered by the end of the month.
We will be one of the first vendors to offer it. Very exciting!

If you can't wait that long look at MK shrouds.

 

[JonnyC]

That's awesome. Are you able to say what the price point may be?

 

[LegacyIndustrial]

That's awesome. Are you able to say what the price point may be?

Nothing yet.

 

[JonnyC]

I ended up buying the Dewalt DWE46170 for $100, which seems to be just a re-branded MK shroud for $30 cheaper, however it comes with Dewalt's stupid quick connect adapter glued in for the vac hose. I didn't realize the MK shroud comes with different adapters too for different angle grinders, as the Dewalt obviously only comes with the Dewalt adapter. Might have to return this and just pay the $30 more.

 

[scottiem]

The tool works best at half speed on a variable speed grinder.

Scotty considering using the Diamabrush 7" to prep my garage floor (830 sqft). If I do I'll have to get a 7" grinder as all I have is a 4 1/2" and not going to use that to do the whole floor. Use said the diamabrush works best with a variable speed grinder. Do you have any recommendations on a 7" variable speed. Also I see you have the Diama shrouds on your site, trying to find out what size the connection is for the vacuum hook up.

 

[LegacyIndustrial]

Secco makes a nice variable speed grinder.
Check ebay and amazon.

I will get you the outlet measurement on Tuesday.
It is likely to be smaller than your hose by design.

 

[scottiem]

Secco makes a nice variable speed grinder.

Doesn't appear that Secco makes a 7" variable speed. Actually I'm having a hard time finding anyone who makes a 7" variable speed grinder without wanting an arm and leg for.

 

[kevster5]

ScottieM,
I've been getting most of my tools from CPOOutlets.com for years. Most are refurbs from that site...love them. Just picked up a new Generac generator at half price last year.

 

[scottiem]

ScottieM,
I've been getting most of my tools from CPOOutlets.com for years. Most are refurbs from that site...love them. Just picked up a new Generac generator at half price last year.

Thanks for the info I'll have to check them out. If I can't find a variable speed for a decent price is there any specific speed that works best for diamond grinding wheels as there are 6000, 6500, 8000 and 8500 speed grinders. I've heard some say that 6000 or so range is the best.

 

[LegacyIndustrial]

Our demo unit is the 4.5" secco. It works best at a little over 1/2 speed.

 

[scottiem]

Our demo unit is the 4.5" secco. It works best at a little over 1/2 speed.

Scotty do you know what that approximate speed would be. As I mentioned if I do the grinding with a hand held I'm going to buy a 7" but the only variable speeds I found in that speed are the Metabo and are quite pricey. I've found some at 6000, 8000 and 8500 just wondering which speed would work best.

 

[LegacyIndustrial]

Spoke with Diamabrush tonight (hard-workers).
As I expected they recommend as slow as you can go and still get the job done.

Faster speeds eat the blades up quicker. Therefore, I would go with the 6000 rpm unit and take the speed down from there.

 

[JonnyC]

I'm currently using the hand tool on a Hitachi 6500rpm 7" (pretty sure that's the speed). I haven't finished my 500 sq/ft floor yet but it seems like it should easily make it through it. Have a nice shroud and shop vac hooked up that as a secondary feature keeps a lot of air flow moving so it seems to be keeping the blades rather cool.

 

[LegacyIndustrial]

The trick to a nice even grind and long blade life is low pressure and keeping the head parallel to the substrate.

 

[scottiem]

I'm currently using the hand tool on a Hitachi 6500rpm 7" (pretty sure that's the speed). I haven't finished my 500 sq/ft floor yet but it seems like it should easily make it through it. Have a nice shroud and shop vac hooked up that as a secondary feature keeps a lot of air flow moving so it seems to be keeping the blades rather cool.

Do you know how much you have worn off the blades as I'm considering buying the diamabrush and a 7" makita that runs at 6000 rpm. I have 900 sqft to do in my garage and 800 to do in my shop and want the blades to be able to do both and then some. I looked into variables but the price for a 7" is to much for my liking. Just don't want to have to buy another set of blades after only doing my garage.

 

[JonnyC]

Do you know how much you have worn off the blades as I'm considering buying the diamabrush and a 7" makita that runs at 6000 rpm. I have 900 sqft to do in my garage and 800 to do in my shop and want the blades to be able to do both and then some. I looked into variables but the price for a 7" is to much for my liking. Just don't want to have to buy another set of blades after only doing my garage.

I took a measurement of the blades before I started. I'll go check where they are at now...

 

[JonnyC]

Well my measurement was pointless. Marked one with a marker and that wore off, so I don't know which one I measured. The blades are actually not made with precision, as you can see in the pictures below that some of them haven't even been touched yet. My initial measurement was 21.x mm, and one of the blades that hasn't been touched is 19.x mm. Either way, they have a lot of life left.

My Hitachi runs at 6,000 RPMs, and I only use the weight of the grinder to do the work, not applying any downward pressure. I'm using an MK shroud which with the edge flap down will create suction lock, so I run it slightly open and the shop vac suction is still able to keep the dust to a minimum (really only starts throwing up dust when the bag/filter is getting clogged.

As you can see in the picture I've done maybe 400 sq/ft so far, and I haven't ground it down all that much (not too even), as I wanted to see how far the blades would get me before really going at it. I probably will leave it like this as I'm only applying a porch and floor paint anyways.

FYI I had to add a washer or two on the spindle to create enough gap around the edge of the shroud as the suction lock was real bad. As it wears down I will have to add more, which doesn't thread into the diamabrush much as it is :-/

Oh, and the part of the concrete I haven't ground with the hand tool yet was already ground wet with the bigger floor tool, which was a mistake. I'm going over the floor with the hand tool to remove all of the dried slurry, and the spots that weren't ground enough in the first pass.

 

[my58]

Scotty,

Will this work on removing thinset? I am removing 2000 sf of porcelain tile (a huge task) and the left over thinset adhesive will need to be removed from the cement slab (a messy crappy task) before putting down the new floor.

What are your thoughts?

Thanks

PS Anyone else who has thoughts please jump in!

 

[texas-saluki]

thought I would jump in... I rented the big dymabrush from HD this weekend to remove my existing coating and prep the surface... did a good job but it took a LONG time to get all of the coating out. about 6 hours for a bit over 850 sq ft. I am not sure if I just did a really good job 12 years ago putting down the coating but it made for a much longer day than I had planned it was about 120 for the tool and the floor buffer. I wish I took a few before and during pictures...

For my85 I would recommend it... on your hands and knees for 2000 sf would be painful. http://www.diamabrushbymalish.com/concrete-prep.html

 

[LegacyIndustrial]

Scotty,

Will this work on removing thinset? I am removing 2000 sf of porcelain tile (a huge task) and the left over thinset adhesive will need to be removed from the cement slab (a messy crappy task) before putting down the new floor.

What are your thoughts?

Thanks

PS Anyone else who has thoughts please jump in!

Yes, in fact I gave my demo unit to our tile guy and he loved it.
He ordered a shroud, head and (2) sets of replacement blades after using ours for a few hundred feet.

 

[Armorpoxy]

Our experience with the Diamabrush tools is that they need to be run wet to keep the diamonds cool and greatly extend their life. The manufacturer confirms this.

 

[LegacyIndustrial]

Wet is not always an option. If you run it on a variable speed grinder and slow it down it works fine. The biggest issue I have seen is when users lean on it. It must be kept flat to the surface.

Lastly, wet requires proper ground fault protection.

 

[BabaGanoosh]

Scotty: Diamabrush now makes a 4.5 and 7 inch wheel, right? I have a 4.5 inch dewalt hand grinder. Nothing special, but decent enough. Would a 7 inch fit on my 4.5 inch grinder? Or, do you recommend just getting the 4.5 diamabrush. Thanks.

 

[mikec35]

The spindle threads are different on a 4.5" and 7" and larger grinders. Plus a 7"'generally spins at much higher rpms and less power- it won't work.

 

[LegacyIndustrial]

Mikec35 is on the money. Always use with a shroud too for protection as well as dust control.