Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk HFACT-B (for blind hole) Spiral Fluted Taps Carbide Taps for Ultra Fast Tappings, Blind Hole Use, for Aluminum Specification (for through hole) Spiral Fluted Taps ■HFACT-B is the carbide tap applicable under ultra high Coating 2D speed cutting. For such tapping conditions as inner coolant supply, mist coolant and dry under cryogenic condition, HFACT-B has coolant hole (center through type ) and is Recommended Tapping Speeds depending on Materials suitable for blind holes of such materials as aluminum castings and aluminum diecastings. (for through hole) Spiral Pointed Taps Aluminum alloy castings inc alloy castings 30〜100 30〜100 (m/min) (m/min) For icon explanation, refer to P.50 Hand Taps TYPE:1 TYPE:2 Carbide Taps Cemented Segment:1L Roll Taps Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For Metric Threads M6 × 1 P3 HFACTBR6.0M 2.5P 62 19 - - 6 - - 3 1 ○ M8 × 1.25 P3 HFACTBR8.0N 2.5P 70 22 - 36 8 - - 3 2 ○ Simple Inspection Tools Special Thread Taps M10 × 1.5 P3 HFACTBR010O 2.5P 75 24 - 37 10 - - 3 2 ○ M10 × 1.25 P3 HFACTBR010N 2.5P 75 24 - 37 10 - - 3 2 ○ M12 × 1.75 P3 HFACTBR012P 2.5P 82 29 - 40 12 - - 3 2 ○ M12 × 1.5 P3 HFACTBR012O 2.5P 82 29 - 40 12 - - 3 2 ○ Pipe Taps M12 × 1.25 P3 HFACTBR012N 2.5P 82 29 - 40 12 - - 3 2 ○ Remarks: 1.HFACT-B 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. Thread Mills Dies Center Drills Centering Tools JIS ◎=Standard ○=Semi standard △=Made to order CT-14 For improvement, spec may change without advance notice. 491