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 HP-RZ High Performance Thread Forming Taps, Coated Spiral Fluted Taps (for blind hole) Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe Type (inch) (inch) (inch) (inch) (inch) (inch) (inch) RS012P-FPTP 4P M12 × 1.75 D11 4.331 1.024 - 2.205 0.367 0.275 0.437 8 4 RS012P-FPTB 2P RS012O9FPTP 4P Spiral Fluted Taps (for through hole) M12 × 1.5 D9 4.331 1.024 - 2.205 0.367 0.275 0.437 8 4 RS012O9FPTB 2P RS012N9FPTP 4P M12 × 1.25 D9 4.331 1.024 - 2.205 0.367 0.275 0.437 8 4 RS012N9FPTB 2P For Unified Threads Spiral Pointed Taps (for through hole) No.0-80UNF H2 RSUN0B2FPTB 2P 1.772 0.236 - 1.161 0.141 0.11 0.187 3 1 No.2-56UNC H3 RSUN2E3FPTB 2P 1.772 0.314 - 1.161 0.141 0.11 0.187 4 1 No.3-48UNC H3 RSUN3F3FPTB 2P 2.205 0.354 0.669 1.28 0.141 0.11 0.187 4 2 No.3-56UNF H3 RSUN3E3FPTB 2P 2.205 0.354 0.669 1.28 0.141 0.11 0.187 4 2 H3 RSUN4H3FPTB Hand Taps No.4-40UNC 2P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 H5 RSUN4H5FPTB H3 RSUN4F3FPTB No.4-48UNF 2P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 H5 RSUN4F5FPTB No.5-40UNC H5 RSUN5H5FPTB 2P 2.205 0.433 0.768 1.358 0.141 0.11 0.187 4 2 Cemented Carbide Taps RSUN6J3FPTP 4P H3 RSUN6J3FPTB 2P No.6-32UNC 2.205 0.433 0.787 1.358 0.141 0.11 0.187 4 2 RSUN6J5FPTP 4P H5 RSUN6J5FPTB 2P Roll Taps RSUN8J3FPTP 4P H3 RSUN8J3FPTB 2P No.8-32UNC 2.48 0.512 0.827 1.535 0.168 0.131 0.25 4 2 RSUN8J5FPTP 4P H5 RSUN8J5FPTB 2P RSUNAM4FPTP 4P Pipe Taps Simple Inspection Tools H4 RSUNAM4FPTB 2P No.10-24UNC 2.756 0.551 0.984 1.654 0.194 0.152 0.25 4 2 RSUNAM6FPTP 4P H6 RSUNAM6FPTB 2P RSUNAJ4FPTP 4P H4 RSUNAJ4FPTB 2P No.10-32UNF 2.756 0.551 0.984 1.654 0.194 0.152 0.25 4 2 RSUNAJ6FPTP 4P H6 RSUNAJ6FPTB 2P RSU04N4FPTP 4P H4 Thread Mills RSU04N4FPTB 2P 1/4-20UNC 3.15 0.591 1.181 1.713 0.255 0.191 0.312 4 2 RSU04N6FPTP 4P H6 RSU04N6FPTB 2P RSU04K4FPTP 4P H4 Dies RSU04K4FPTB 2P 1/4-28UNF 3.15 0.591 1.181 1.713 0.255 0.191 0.312 4 2 RSU04K6FPTP 4P H6 RSU04K6FPTB 2P RSU05O5FPTP 4P H5 RSU05O5FPTB 2P Center Drills 5/16-18UNC 3.543 0.748 1.378 1.831 0.318 0.238 0.375 6 3 RSU05O7FPTP 4P H7 RSU05O7FPTB 2P RSU05M5FPTP 4P H5 RSU05M5FPTB 2P 5/16-24UNF 3.543 0.748 1.378 1.831 0.318 0.238 0.375 6 3 Centering Tools RSU05M7FPTP 4P H7 RSU05M7FPTB 2P RSU06P5FPTP 4P 3/8-16UNC H5 3.937 0.906 1.535 2.028 0.381 0.286 0.437 6 3 RSU06P5FPTB 2P ANSI RO-11 292