UNC HSS-Co5 Spiral Flute Machine Tap Set 6-32, 8-32, 10-24, 1/4, 5/16, 3/8, 1/2
HSS-Co Spiral Flute Taps.
Spiral Flute taps are designed primarily for machine tapping of blind holes.
They are used to the best advantage in materials that produce long continuous chips.
The right hand spiral forces the swarf out of the hole and prevents the chips from clogging at the bottom of the hole or in the flutes, which could cause tap breakage or spoiled threads.
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