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SELECTING THE CORRECT TAP
Short Machine and Hand Taps
For general purpose hand or machine use for short production runs.
Best suited for materials which do not present chip disposal problems.
Machine Taps
Spiral Point Tap
Sometimes called a gun nosed tap. For machine use on through
holes. Suitable for a wide range of materials. The gun nose creates
chip disposal ahead of the tap while the flute geometry allows an
adequate supply of lubricant to the cutting area, making higher tapping
speed possible.
Spiral Flute Tap
Mainly for work in blind holes and on ductile materials, such as
aluminium and zinc alloys, which produce long stringy chips. The
taps have a 35° right hand helix. The flute shape eliminates clogging
and jamming, resulting in improved tap life.
Taper
Second
Bottoming
