
■ Applicable for ultra high speed tapping. Having internal
| Coating | 2D | coolant 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
| Size | Class | Code | Chamfer | L (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | No. of flutes | Type | Stock |
| For Metric Threads | |||||||||||||
| M6×1 | P4 | HFIHSS6.0M | 2.5P | 62 | 11 | 27 | 32 | 6 | - | - | 3 | 1 | ○ |
| M8×1.25 | P4 | HFIHSS8.0N | 2.5P | 70 | 12 | - | 36 | 8 | - | - | 3 | 2 | ○ |
| M10×1.5 | P4 | HFIHSS010O | 2.5P | 75 | 13 | - | 37 | 10 | - | - | 3 | 2 | ○ |
| M10×1.25 | P4 | HFIHSS010N | 2.5P | 75 | 12 | - | 37 | 10 | - | - | 3 | 2 | ○ |
| M12×1.75 | P4 | HFIHSS012P | 2.5P | 82 | 15 | - | 40 | 12 | - | - | 3 | 2 | ○ |
| M12×1.5 | P4 | HFIHSS012O | 2.5P | 82 | 14 | - | 40 | 12 | - | - | 3 | 2 | ○ |
| M12×1.25 | P4 | HFIHSS012N | 2.5P | 82 | 14 | - | 40 | 12 | - | - | 3 | 2 | ○ |
| M14×1.5 | P4 | HFIHSS014O | 2.5P | 88 | 14 | - | 40 | 12 | - | - | 3 | 2 | ○ |
| M16×1.5 | P4 | HFIHSS016O | 2.5P | 95 | 14 | - | 43 | 16 | - | - | 3 | 2 | ○ |
| M18×1.5 | P4 | HFIHSS018O | 2.5P | 100 | 14 | - | 45 | 16 | - | - | 4 | 2 | ○ |
| M20×1.5 | P5 | HFIHST020O | 2.5P | 105 | 14 | - | 45 | 16 | - | - | 4 | 2 | ○ |
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.