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HFAHS

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

Specification

■ Applicable for ultra high speed tapping. Having internal

Coating 2D coolant hole(center through hole), HFAHS is suitable for

aluminum castings, blind hole use. Effective in vertical tapping use.

Recommended Tapping Speeds depending on Materials

Wrought aluminumAluminum alloy castingsMagnesium alloy die castingsinc alloy castings
30〜10030〜10030〜100 30〜100
(m/min)(m/min)(m/min)(m/min)

For icon explanation, refer to P.50

TYPE：1 TYPE：2

Segment：1D

SizeClassCodeChamferLℓℓnℓsDsKℓkNo. of
(mm)(mm)(mm)(mm)(mm)(mm)(mm)flutes Type Stock

For Metric Threads M6 × 1 ○

P4 HFAHSS6.0M 2.5P 62 11 27 32 6 - - 3 1

M8 × 1.25 ○

P4 HFAHSS8.0N 2.5P 70 12 - 36 8 - - 3 2

M10 × 1.5 ○

P4 HFAHSS010O 2.5P 75 13 - 37 10 - - 3 2

M10 × 1.25 ○

P4 HFAHSS010N 2.5P 75 12 - 37 10 - - 3 2

M12 × 1.75 ○

P4 HFAHSS012P 2.5P 82 15 - 40 12 - - 3 2

M12 × 1.5 ○

P4 HFAHSS012O 2.5P 82 14 - 40 12 - - 3 2

M12 × 1.25 ○

P4 HFAHSS012N 2.5P 82 14 - 40 12 - - 3 2

M14 × 1.5 ○

P4 HFAHSS014O 2.5P 88 14 - 40 12 - - 3 2

M16 × 1.5 ○

P4 HFAHSS016O 2.5P 95 14 - 43 16 - - 3 2

M18 × 1.5 ○

P4 HFAHSS018O 2.5P 100 14 - 45 16 - - 3 2

M20 × 1.5 ○

P5 HFAHST020O 2.5P 105 14 - 45 16 - - 3 2

Remarks: 1.HFAHS 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.