- You can cut materials up to about half as hard as the cutting
tool.
- Keep Tap Drill sharp! A dull drill can work harden the
material you are tapping.
- Hand taps can go about 2x their diameter
in depth without chip problems.
- Fast or High Spiral fluted taps can
go about 3x times their diameter before chip problems occur.
- Almost
all tap breakage when reversing out is due to a chip packing problem.
- A
taper in the threads or oversize threads are caused by feed rate. This
is the hardest problem to fix.
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