Tool Talk

Classic Power Tools => Classic Power Tools => Topic started by: bunger on April 05, 2022, 02:05:33 PM

Title: Heavy duty angle grinder
Post by: bunger on April 05, 2022, 02:05:33 PM
Can anyone help me in ID'ing this angle grinder? The nameplate is all but wiped clean.
Title: Re: Heavy duty angle grinder
Post by: Bill Houghton on April 05, 2022, 02:58:08 PM
Looks like a Milwaukee, but that's as far as I can go.
Title: Re: Heavy duty angle grinder
Post by: Model 12 on April 05, 2022, 03:31:01 PM
I thought the same thing when I saw the picture; Milwaukee. Could be a sander or polisher as well.
Title: Re: Heavy duty angle grinder
Post by: bunger on April 05, 2022, 03:39:08 PM
Looks like a Milwaukee, but that's as far as I can go.

That was my first thought.
The nameplate does have remnants of red on it, so maybe it is Milwaukee.


..... Could be a sander or polisher as well.

Possibly. The RPMs are much slower than my modern angle grinders, but it's pretty heavy to be doing any precision work.
Title: Re: Heavy duty angle grinder
Post by: Model 12 on April 11, 2022, 03:40:35 AM
In the top picture, those two black round things with the threaded center. Those are backing pads. It's a polisher. Milwaukee 5530. I hope you've been able to get that cup wire off.
Title: Re: Heavy duty angle grinder
Post by: bunger on April 13, 2022, 09:07:11 AM
In the top picture, those two black round things with the threaded center. Those are backing pads. It's a polisher. Milwaukee 5530. I hope you've been able to get that cup wire off.

The discs in the background are 7" grinding discs (cheap Cummins brand) that I won't be using. And yes the wire cup comes off easily.
Title: Re: Heavy duty angle grinder
Post by: Model 12 on April 13, 2022, 06:13:32 PM
That's good, I been wondering about that. I use a lot of those wire cups. I had the threads of that seizing on this Milwaukee grinder. I got some thin wrenches to fit in there. I keep em with that grinder.
I looked at the schematics for your tool and I didn't see anything that a wrench could engage.
I had the newer Milwaukee 5540, but I gave that to a good friend a few years back.
You say it's a lower speed and those pictures are real good. The shots of that brush cap nails it down. The 5530 diagrams for 1974-82 are a match. The 1968 is different.
I can see where someone would use that wire cup on your tool. Using the regular wire cup on the angle grinder; 11,000 rpm, after some use the little wires fly off like arrows.