Hi Gang,
We just got a second hand SnapOn valve seat grinder and Valve face grinder both are in great shape and it looks like from the on line SnapOn prices we made a good deal for the $500 we paid.

There were a couple of other tools that got thrown in on the deal like a metric tap and die set a set of Moore Wright inside mikes and a Snap On AVR meter. By the way the new current model replacement price for both valve grinders is over $12,000cdn.

There is a drawer full of grinding stones and what look like shafts that would fit into the valve guides
I looked into our catalogue but there is not too much information on the operation but lots of options for different stones.


My question how do you know which grinding stones to use?

I looked in my repair manuals and see that a 3 different angle are required for a VW industrial motor on a saw mill that we will be rebuilding shortly.

Are there any good books that might show how to get the most out of these tools
thanks
hank