I lost one of the pins for my clamp type knurling tool so I made a new one. I assume it needs to be heat treated as the ones on the tool have already started to wear a decent amount (Chinese made knurling tool). I made the pins from some 12L14. The "equipment" I have at my disposal is a propane torch and a firebrick. My thought was to initially heat to an even cherry red then quench in oil then draw it back some (??). What I don't know is to what color or temp I should heat to to draw it back some as I assume that the oil quenched part might be too hard and how can I cool it slowly if that's what's needed. Any education/suggestions would be greatly appreciated.
I also want to heat treat the "handle" I made for my collet chuck for my lathe (straight round bar that fits in a hole in the side of the chuck to help tighten). This too is made from 12L14 and it already has a small bend in it that I thought hardening some would help alleviate. I thought this piece might need to be less hard than the pins. ???
I also want to heat treat the "handle" I made for my collet chuck for my lathe (straight round bar that fits in a hole in the side of the chuck to help tighten). This too is made from 12L14 and it already has a small bend in it that I thought hardening some would help alleviate. I thought this piece might need to be less hard than the pins. ???