Spiral Flute

SPIRAL FLUTE TAPS are most commonly used in blind hole tapping/where a hole has bottom and the chip is lifted up out of the hole. This style tap is also effective to bridge openings, keyways and other interruptions in a tapped hole.

Right Hand Cutting

Ground Threads

Spiral Flute Taps are available in variations of leads

Plug = 3-5 Thread Lead

Semi-Bottom = 1-1/2 - 2 Thread Lead

Bottom = 1-2 Thread Lead