What is this tool?

[ebinmaine 74,782]

This was with a bench grinder we just got from an auction.

It has 4 separate "gear" rollers? that move independently of one another. 

 

A stone dressing tool of some sort?

 

 

 

 

 

[Bar Nuthin 1,564]

That's a dressing tool for your grinding wheels. To true up the face of the stone.

Best if you have a solid guide you can rest against to stay flat with the face of the stone.

Edited 15 hours ago by Bar Nuthin

[Ed Kennell 43,256]

     I have better results using the single diamond point dresser.   Working the stop against the grinder work rest.

 

 

 

[ebinmaine 74,782]

2 hours ago, Bar Nuthin said:

solid guide you can rest against

 

Here's the machine. 

Two solid guides. Two different stones at two different angles. 

 

 

 

 

 

1 hour ago, Ed Kennell said:

I have better results using the single diamond point dresser.   Working the stop against the grinder work rest.

 

 

I have a couple much smaller dressing tools made from square stock coated with diamond grit. 

Never used a round ended one.  

 

 

[formariz 12,295]

Curiously I never liked using either type. I use and have great results using an old used diamond cutting saw blade. I find it easier to control  and more versatile being able to use the very tip or the sides. Easier to control with faster results. 

Edited 12 hours ago by formariz

[ri702bill 10,169]

Similar to the one I have... I did have to disassemble it to add a washer spacer at one end of the stack to limit the amount of "wander" the wheels had. That improved the wheel finish.

I thought for a minute that the wheel on the right of your grinder was green, not gray. Green is for dressing carbide - and that wheel is expensive...