HFIHS

For Ultra Fast Tapping, Vertical Use. Spiral Fluted Taps for Carbon Steels

Specification

■ Applicable for ultra high speed tapping. Having internal

Coating2Dcoolant hole(center through type), HFIHS is suitable for
carbon steels and alloy steels, blind hole use. Vertical
tapping use.
Recommended Tapping Speeds depending on Materials

ow carbon steelsow carbon steels Medium carbon steels High carbon steels Alloy steels

2015〜5025 20〜50 20〜30 20〜30 For icon explanation, refer to P.50 TYPE:1 TYPE:2

Segment:1D

SizeClassCodeChamferL (mm)ℓ (mm)ℓn (mm)ℓs (mm)Ds (mm)K (mm)ℓk (mm)No. of flutesTypeStock
For Metric Threads
M6×1P4HFIHSS6.0M2.5P621127326--31
M8×1.25P4HFIHSS8.0N2.5P7012-368--32
M10×1.5P4HFIHSS010O2.5P7513-3710--32
M10×1.25P4HFIHSS010N2.5P7512-3710--32
M12×1.75P4HFIHSS012P2.5P8215-4012--32
M12×1.5P4HFIHSS012O2.5P8214-4012--32
M12×1.25P4HFIHSS012N2.5P8214-4012--32
M14×1.5P4HFIHSS014O2.5P8814-4012--32
M16×1.5P4HFIHSS016O2.5P9514-4316--32
M18×1.5P4HFIHSS018O2.5P10014-4516--42
M20×1.5P5HFIHST020O2.5P10514-4516--42

Remarks: 1.HFIHS do not have square on its shank, please use holders having strong gripping force, such as milling chucks. 2.Rear end of the shank is to tongue specification. If the portion which contacts the rear end has V saucer shape, coolant may leak.