William Ward
Cast Iron
- Joined
- Mar 28, 2003
- Location
- Upland, California,USA
I know it's kind of a silly question, and I know they are ground from solid on a CNC cutter grinder. But I have been asked by more than one colleague how they are made and I don't have an answer I'm comfortable isn't 50% guess and 50% BS. I'm asking about the really small ones, under .010" diameter.
I regularly use a .005" diameter x .046" reach 2 flute from Richards Micro-Tool that I can barely see under the scope and it is amazing that something that small with that L/D ratio can be produced at all let alone produced and sold for what they sell for.
So how are they ground and what grit wheel is needed to keep the wheel edge sharp enough to produce the lips and make it center cutting?
I regularly use a .005" diameter x .046" reach 2 flute from Richards Micro-Tool that I can barely see under the scope and it is amazing that something that small with that L/D ratio can be produced at all let alone produced and sold for what they sell for.
So how are they ground and what grit wheel is needed to keep the wheel edge sharp enough to produce the lips and make it center cutting?