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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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How to hold taps for CNC rigid tapping.
My CNC mill does rigid tapping and it is great and easy to do -- just
one "one liner" like this G33.1 Z[-0.5] K[1/24] would rigid tap a 24 TPI thread from the current point to the depth -0.5. Easy and powerful. It even works great with fine threads, but I have a problem with coarse threads. I hold the taps in a Jacobs drill chuck. The chuck cannot hold a coarse tap, like 1/4-20, the tap slips in the chuck. The result, is holes that are partially tapped and a slipping tap. Not the end of the world, but I want to do better. What kind of tool holder should I use for this rigid tapping? Would colleted tool holders help with this? i |
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