Making timing pulley - putting theory into action

[John S]

Doing a stack at the moment.

These are 5m's



And the finished job.



5M's are a doddle, 1/8" ball nose cutter 2.16mm deep plunged in from the OD which you can get off the HPC website.

For 3M's you need a 2mm ball nose 1.28 deep.