Roll 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) OL-RZ Thread Forming Taps for Dry Tapping, Coated Spiral Fluted Taps (for through hole) Specification ■OL-RZ is the forming tap enabling dry tapping under Coating following condition : tapping sizes of smaller than M6, thin steel sheets having burring operation, and steel parts with rather short length. Optimum coating suitable to the Recommended Tapping Speed depending on Materials tapping condition. Spiral Pointed Taps (for through hole) ow carbon steels Medium carbon steels High carbon steels Alloy steels Stainless steels 15〜30 15〜30 15〜25 15〜25 10〜25 For icon explanation, refer to P.50 Hand Taps TYPE:e1 TYPE:2e Cemented Carbide Taps Segment:1J Roll Taps Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe Type (inch) (inch) (inch) (inch) (inch) (inch) (inch) For Metric threads M3 × 0.5 D5 RS3.0G5HPTP 4P 2.205 0.433 0.768 1.358 0.141 0.11 0.187 4 2 M3.5 × 0.6 D6 RS3.5H6HPTP 4P 2.205 0.433 0.787 1.358 0.141 0.11 0.187 4 2 Pipe Taps Simple Inspection Tools M4 × 0.7 D6 RS4.0I6HPTP 4P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 4 2 M5 × 0.8 D7 RS5.0K7HPTP 4P 3.15 0.591 0.984 1.929 0.22 0.165 0.281 4 2 M6 × 1 D8 RS6.0M8HPTP 4P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 4 2 For Unified Threads No.2-56UNC H3 RSUN2E3HPTP 4P 1.772 0.314 - 1.161 0.141 0.11 0.187 4 1 No.4-40UNC H5 RSUN4H5HPTP 4P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 No.4-48UNF H5 RSUN4F5HPTP 4P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 No.5-40UNC H5 RSUN5H5HPTP 4P 2.205 0.433 0.768 1.358 0.141 0.11 0.187 4 2 Thread Mills No.6-32UNC H5 RSUN6J5HPTP 4P 2.205 0.433 0.787 1.358 0.141 0.11 0.187 4 2 No.8-32UNC H5 RSUN8J5HPTP 4P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 4 2 No.10-24UNC H6 RSUNAM6HPTP 4P 2.756 0.551 0.984 1.654 0.194 0.152 0.25 4 2 No.10-32UNF H6 RSUNAJ6HPTP 4P 2.756 0.551 0.984 1.654 0.194 0.152 0.25 4 2 Dies 1/4-20UNC H6 RSU04N6HPTP 4P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 4 2 1/4-28UNF H6 RSU04K6HPTP 4P 3.15 0.591 1.181 1.713 0.255 0.191 0.312 4 2 Center Drills Centering Tools ANSI RO-9 290