Grinding Disc Holder

February 01, 2021

finished grinding disc holder

I went to Home Depot the other morning to get a grinding disc in anticipation of a project. Well I bought a grinding disc I already had, but I did not buy the one I needed!

Since my last move, my grinding discs have been tucked away in several boxes in a cabinet. This made it really hard to do a general assessment or find a disc. That needed to change.

As it turned out, I had the perfect pieces cut to size in the scrap bin. I did do a quick cad layout in Onshape.

build start

I put a slight angle on the rods using my home made bender. I just made the first one and used it as a gauge for the next ones.

bending 3/8 inch rod

I tacked it all up, but it did not work.

tacked up weld

Forgot to account for the slop in the hole.

too much clearance

So I cut them off, moved them up a bit and rewelded.


Then I realized I needed something to hold the wrenches. First thought of welding on a small rod, but you would have to take all the wrenches off to get to the inner wrench. No bueno.

rod angle grinder wrench holder

So more scrap tubing to the rescue!

tube angle grinder wrench holder

It warped due to all the welds in the center so I put it in the press to straighten it out.

pressing out weld warp

I sprayed some old rattle can paint on it. I believe the paint was left over from making Festivus Poles for Santacon. We made them out of cardboard McmasterCarr tubes so they would be disposable.


I milled up some slider feet so as not to scratch the paint job when I spin it. It probably would have helped if I let the paint dry, but that never happens. These were milled in one setup using a slitting saw to seperated from each part from the stock.

machined some slidey feet

And it is done! And I know exactly what grinding discs I have!

finished angle grinder disc holder

Thanks for looking! There are more pics, CAD, and CAM here...

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Written by Bill Schnoebelen who lives in San Francisco, CA and works in Orland, CA designing and building sometimes useful things. You should follow him on Twitter or visit Circuit Case Engineering.