Straight electrical grinder

czechsonofagun · Dec 1, 2010

I got this straight electrical grinder, Black and Decker I believe, it is old and the name is scratched bad.

It has no wheel or wheel cover on it, the anchor is 3/8", anybody is familiar with similar one? It warns against using a wheel not designed for 4500rpms, which should not be problem today, but every grinding wheel I found locally has a bigger hole. I am guessing 4-5" wheel is maximum it should take, but nothing came with it.

It looks sturdy and well built with full aluminum casing and from outside accessible brushes and overall nice piece of power tool. I was thinking adopting it to my lathe as tool post grinder, but due to the mass of the motor it would have very limited use. Now I am thinking just use it along my Makita 4 1/2".

Opinions?

PILOON · Dec 1, 2010

Keep looking for grinding wheels as you will find some brands will come with sleeves (usually plastic inserts) or bushings to step down to your needed 3/8".
With appropriate bushing inserts all you need is then a couple of washers hold that grinding wheel in place.
You might have to go to an industriel supply house or again try a web search.
They exist as I have some at home.

kenstrac · Dec 1, 2010

Take a look at McMaster Carr McMaster-Carr alot of the dewalt stuff was was the old Black & decker ind. line,the largest wheel is 4" McMaster-Carr If you use a larger wheel and you get it caught you might break or bend the shaft. At one of the places I worked at the had the bigger B&D that had a 5/8 shaft w/6" wheel.