Starting to grind

[Jaguar Fan]

Just starting to grind my garage floor with a Dewalt . Keeping control of that grinder is a task. I've already cut a few gouges.

 

[NitroShark]

Go to your Dewalt factory service center (see their WEB page) order item # N228080 Bail Handle Kit List for $35


Shawn

 

[shaun oriold1]

Let the grinder do the work. Dont be in a huge hurry to attack it. You'll find it will stay flatter on the ground if your patient. The end result will be better, and dust collection too.

 

[TheModelAGuy]

Small wheels make it difficult. Go slowly.

 

[Jaguar Fan]

The bail handle looks like it will help. I'll try to get it tomorrow.

I'm using a 7" DeWalt D28474W, 8000 rpm, 15 amp, 4 HP (max) handheld grinder.

How do I prevent the diamond grinding cup from "polishing" the concrete? I know I'm supposed to end up with something similar to 80 to 120 grit sandpaper, but I'm ending up with a surface that is not close to that coarse.

Question on shop-vac: I'm using filter bags. For some reason, the bags I'm using seem to tear after a relatively short time. I put some duct tape around the bottom end of the housing where stock filter goes (it is a but sharp and poked a hole in the first filter bag). Is this a common problem?

 

[James-W]

Maybe you should be using a Diamabrush with a big floor buffer machine. It would probably make the job go quicker and there would be less chance of gouging the concrete.

 

[Garage Flooring]

Maybe you should be using a Diamabrush with a big floor buffer machine. It would probably make the job go quicker and there would be less chance of gouging the concrete.

Or at least their hand tool..... No kiss marks.

 

[Jaguar Fan]

Where can I purchase a Diamabrush? Home Depot? Lowes? Concrete specialty ?

 

[12ozd]

Home Depot carries them.

 

[JamesTreeby]

The bail handle looks like it will help. I'll try to get it tomorrow.

I'm using a 7" DeWalt D28474W, 8000 rpm, 15 amp, 4 HP (max) handheld grinder.

How do I prevent the diamond grinding cup from "polishing" the concrete? I know I'm supposed to end up with something similar to 80 to 120 grit sandpaper, but I'm ending up with a surface that is not close to that coarse.

Question on shop-vac: I'm using filter bags. For some reason, the bags I'm using seem to tear after a relatively short time. I put some duct tape around the bottom end of the housing where stock filter goes (it is a but sharp and poked a hole in the first filter bag). Is this a common problem?

Jaguar,

If you are starting to 'polish' the concrete, then your diamond blade is getting to hot and glazing over, try putting a bit of water down on the concrete as you grind, not much, just enough to keep them 'open'.

If its still happening then maybe you can try changing to a lower grit cup-wheel (around a 30/40 grit) for an initial grind, and the go back over with the 80 - 120 to remove any large scratches. Alternativly, hire a larger and heavier walk behind floor grinder, which will be a lot faster.

Vac - if you will be grinding a fair bit off the floor, you might want to think of using a more industrial vac with a separator, that does not use bags to filter. Not many small/household vacs can cope with the amount of dust created when diamond grinding.

Let me know how it goes.

Jamie

 

[Garage Flooring]

Where can I purchase a Diamabrush? Home Depot? Lowes? Concrete specialty ?

If you cant find it locally we have them here http://www.garageflooringllc.com/diamabrush-hand-tools-diamabrush-4-5-7-removal-tools/ and can generally ship same day

 

[Jaguar Fan]

Home Depot carries them.

If you cant find it locally we ... can generally ship same day

THanks! I picked one up at Home Depot & will give it a whirl this afternoon.

 

[Garage Flooring]

Perfect!


Sent from my iPhone using Tapatalk

 

[davidlee]

Jaguar Fan, a set of tile setters knee pads are real helpful. Just one less thing to move around. Your hands stay full between the grinder, power cord, shop vac and hose.

 

[Jaguar Fan]

The Diamabrush 7" tool is a wheel, not a cup -- so it doesn't fit with my dust shroud. It only partially screws on before the back of the wheel hits the portion of the shroud where the vacuum hose goes.

Is there a special dust shroud I need for this?

 

[LegacyIndustrial]

Yes, it's made by diamabrush. We have it.

 

[12ozd]

The Diamabrush 7" tool is a wheel, not a cup -- so it doesn't fit with my dust shroud.
Is there a special dust shroud I need for this?

I have this one, it works great !!

 

[davidlee]

I had to modify my dust shroud. I had the same problem. I was able to remove the part of the vac tube inside the shroud to clear the Dimabrush.
My shroud was a semi-rigid plastic so I took my air saw and cut off the inside ****** that was in the way.

 

[Garage Flooring]

I had to modify my dust shroud. I had the same problem. I was able to remove the part of the vac tube inside the shroud to clear the Dimabrush.
My shroud was a semi-rigid plastic so I took my air saw and cut off the inside ****** that was in the way.

FYI the dustless one works BUT Diamabrush makes their own and we will be switching to it.