Valve Seat Cutters
Build a 30 and a 60* stone to bridge the gaps. Here is the instructions from a kit. You use a hand tool or something to run through the top of the stem and turn it back and forth by hand. Light pressure.
Build a 30 and a 60* stone to bridge the gaps. Here is the instructions from a kit. You use a hand tool or something to run through the top of the stem and turn it back and forth by hand. Light pressure.
