Hi everyone, I have an old american made bench grinder on which I would like to put on a "Normal" grinding disc, to do this I need to have an adapter made and I have a friend that will take care on that on a lathe but the threads are 1/2" UN Extra Fine left hand and those taps cost $129 each!!!!!!!!! thats more than the whole grinder is worth so thats excluded,.
thanks!
Andr�
Can't your friend "cut" the threads on his lathe with a small
internal threading tool?
