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Spiral Flute Semi Bottoming Taps for Aluminum
No. of Flutes
Ground Thread Limit
Spiral Flute Taps are designed to lift the chips out of the hole in blind hole tapping, eliminating chip evacuation problems which can result in damaged threads and broken taps. They will also bridge openings, keyways and other interruptions in the tapped hole.
2-3 Thread chamfer allows threading close to the bottom of blind holes, but cuts more efficiently than standard bottoming taps due to slightly higher chamfer which distributes the cutting load over a greater number of teeth.
Recommended for all types of aluminum alloys.
CrN Coating especially recommended for high-silicon aluminum alloys.
Made from Premium High Speed Steel
CLICK HERE to download our Speeds and Feeds Chart.