20,000 RPM Wire brush

[David_Doan]

So my new favorite tools are my air die grinders (straight and angled). I have the standard assortment of abrasive pads and stones. What I would really like is a wire wheel/brush that can handle 20k rpm.

I have a few that I use in my drills, but none of them are rated above 4500 rpm.

Any ideas?

Thanks,

David

 

[TR3driver]

To get that kind of speed rating, you're probably going to have to go for a smaller diameter end brush. For example, here are some 1" brushes that are rated to 22,000 rpm:
https://www.mcmaster.com/#catalog/118/2697

For limited use, I wear lots of protection and use the throttle to keep the brush speed down, so I can "get away" with a 13,000 rpm cup brush.

For more extensive work though, I prefer a cheap electric angle grinder with a threaded cup brush. Much more torque/power available, a thinner cord, and I don't ever have to wait for the compressor to catch up. Eg this
https://www.harborfreight.com/4-1-2-half-inch-angle-grinder-95578.html
plus this
https://www.harborfreight.com/3-inch-twisted-wire-cup-brush-47927.html

 

[David_Doan]

Thanks, that got me pointed in the right direction. After seeing those on McMaster, I found these on amazon.com

DEWALT DW49004 3/4-Inch by 1-1/8-Inch High Performance Carbon Knot Wire End Brush, 0.014-Inch Wire
https://www.amazon.com/gp/product/B005IW2N8M/ref=oh_o00_s00_i00_details

DEWALT DW4903 3-Inch Crimped Flat Faced End Wire Brush
https://www.amazon.com/gp/product/B00004YMDH/ref=oh_o00_s00_i01_details

I had to google the part numbers on other web sites to confirm that they are both rated at 20,000 rpm. I was hoping to find something at HomeDepot or Lowes, but no such luck.

And yes, A 4.5" angle grinder is on my wish list too.

Thanks,

David

 

[elrey]

The knotted brushes stand up longer.

 

[Banjo]

I love my die grinders, but I tend to stick with the 3M rol-loc pads. I use the brown scotch-brite looking ones ones the most, green ones are for finer stuff. Also the plastic fingered discs work like a wire wheel, and are made for the higher RPMS. they also make sandpaper discs for the same pads system. I never liked using a wire wheel or cup on my 90 deg die grinder, it's just to awkward and jumpy. It's lots better on the straight one.

 

[elrey]

Rol-Locs, :thumbsup: The bomb. Effective and easy to change out.