To cut threads in hardened M-2 punch pins you need sharp colbalt and light cuts. Note the chewed flats. <meh> I really need to get my surface grinder wired up. Watch the video. Also:
- New cross slide nut - got the durabar, just need the time.
- 5c Thru Collet - have the tube for drawbar, need to get, adapt, fab nose protector and wedge. Why a 5c Drawbar? 'Cause i need to use reverse, a threaded spindle means danger. With this setup I have better QA in production and can thread away from the spindle for my camera work and tool post grind safely.
- Stops for cross, left and right facing
- Follow rest mods
- Tool post grinder truing
- Jumbo boring bar holder
- Aluminum DRO and way covers
- Tach
- Chip shield
- Cross slide lock cam and handle
See Sheldon history post for more about this lathe.