Spiral Fluted Tap Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk Spiral Fluted Taps (for blind hole) ISP Spiral Fluted Taps for General Purpose Spiral Fluted Taps (for through hole) Specification ■Suitable for low speed tapping of steels. For manual use and drilling machine use. Oxide Spiral Pointed Taps (for through hole) Recommended Tapping Speed depending on Materials ow carbon steels 〜5 TYPE:1 For icon explanation, refer to P.50 Hand Taps Cemented Carbide Taps TYPE:2 TYPE:3 Roll Taps Segment:1C Pipe Taps Simple Inspection Tools Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type (inch) (inch) (inch) (inch) (inch) (inch) (inch) flutes For Unified Threads No.6-32UNC - UAUN6JXHEX 2.5P 2 0.374 0.669 1.201 0.141 0.11 0.187 3 1 No.8-32UNC - UAUN8JXHEX 2.5P 2.125 0.374 0.866 1.339 0.168 0.131 0.25 3 1 No.10-24UNC - UAUNAMXHEX 2.5P 2.375 0.512 0.866 1.339 0.194 0.152 0.25 3 1 1/4-20UNC - UAU04NXHEX 2.5P 2.5 0.591 1.024 1.22 0.255 0.191 0.312 3 2 5/16-18UNC - UAU05OXHEX 2.5P 2.718 0.669 1.004 1.378 0.318 0.238 0.375 3 3 3/8-16UNC - UAU06PXHEX 2.5P 2.937 0.748 1.059 1.496 0.381 0.286 0.437 3 3 Thread Mills For Unified Threads(In blister package) No.6-32UNC - UAUN6JXHEXR 2.5P 2 0.374 0.669 1.201 0.141 0.11 0.187 3 1 No.8-32UNC - UAUN8JXHEXR 2.5P 2.125 0.374 0.866 1.339 0.168 0.131 0.25 3 1 No.10-24UNC - UAUNAMXHEXR 2.5P 2.375 0.512 0.866 1.339 0.194 0.152 0.25 3 1 1/4-20UNC - UAU04NXHEXR 2.5P 2.5 0.591 1.024 1.22 0.255 0.191 0.312 3 2 Dies 5/16-18UNC - UAU05OXHEXR 2.5P 2.718 0.669 1.004 1.378 0.318 0.238 0.375 3 3 3/8-16UNC - UAU06PXHEXR 2.5P 2.937 0.748 1.059 1.496 0.381 0.286 0.437 3 3 Blister Package Center Drills Centering Tools ANSI SP-1 188