Overall length L Pin length ℓ Bored hole dia. Bored hole dia. Bored hole depth Bored hole depth Bored hole depth (GO) d1 (NOT-GO) d2 (1.5D) ℓ1 (2D) ℓ2 (2.5D) ℓ3 Shank dia. Ds ⑦ CPC-S Check Pins for Bored Hole in Thread Cut Tapping (Straight Type) JIS L ℓ d1 d2 ℓ1 ℓ2 ℓ3 Ds MSRP Size Code TYPE Spiral Fluted Taps (for blind hole) (mm) (mm) (Thread engagement ratio) (Thread engagement ratio) (mm) (mm) (mm) (mm) ① 5/16-24UNF CPCSU05MA 99 22 6.782 (100%) 6.907 (90%) 11.9 15.9 19.8 8 1 ¥4,000 □ 5/16-24UNF CPCSU05MB 99 22 6.850 (95%) 6.964 (85%) 11.9 15.9 19.8 8 1 ¥4,000 □ 5/16-24UNF CPCSU05MC 99 22 6.907 (90%) 7.021 (80%) 11.9 15.9 19.8 8 1 ¥4,000 □ 5/16-24UNF CPCSU05MD 99 22 6.964 (85%) 7.079 (75%) 11.9 15.9 19.8 8 1 ¥4,000 □ Spiral Fluted Taps (for through hole) 5/16-24UNF CPCSU05ME 99 22 7.021 (80%) 7.136 (70%) 11.9 15.9 19.8 8 1 ¥4,000 □ ② 5/16-24UNF CPCSU05MF 99 22 7.079 (75%) 7.193 (65%) 11.9 15.9 19.8 8 1 ¥4,000 □ 5/16-24UNF CPCSU05MM *5 piece set consists of CPCSU05MB ~ CPCSU05MF ¥20,000 □ 5/16-24UNF CPCSU05MS *5 piece set consists of CPCSU05MA ~ CPCSU05ME ¥20,000 □ 3/8-16UNC CPCSU06PA 110 27.5 7.798 (100%) 7.978 (90%) 14.3 19.1 23.8 10 1 ¥4,200 □ Spiral Pointed Taps (for through hole) ③ 3/8-16UNC CPCSU06PB 110 27.5 7.892 (95%) 8.064 (85%) 14.3 19.1 23.8 10 1 ¥4,200 □ 3/8-16UNC CPCSU06PC 110 27.5 7.978 (90%) 8.150 (80%) 14.3 19.1 23.8 10 1 ¥4,200 □ 3/8-16UNC CPCSU06PD 110 27.5 8.064 (85%) 8.236 (75%) 14.3 19.1 23.8 10 1 ¥4,200 □ 3/8-16UNC CPCSU06PE 110 27.5 8.150 (80%) 8.322 (70%) 14.3 19.1 23.8 10 1 ¥4,200 □ 3/8-16UNC ¥4,200 □ Hand Taps CPCSU06PF 110 27.5 8.236 (75%) 8.408 (65%) 14.3 19.1 23.8 10 1 ④ 3/8-16UNC CPCSU06PM *5 piece set consists of CPCSU06PB ~ CPCSU06PF ¥21,000 □ 3/8-16UNC CPCSU06PS *5 piece set consists of CPCSU06PA ~ CPCSU06PE ¥21,000 □ 3/8-24UNF CPCSU06MA 110 27.5 8.382 (100%) 8.494 (90%) 14.3 19.1 23.8 10 1 ¥4,200 □ 3/8-24UNF CPCSU06MB 110 27.5 8.437 (95%) 8.551 (85%) 14.3 19.1 23.8 10 1 ¥4,200 □ Cemented Carbide Taps 3/8-24UNF CPCSU06MC 110 27.5 8.494 (90%) 8.608 (80%) 14.3 19.1 23.8 10 1 ¥4,200 □ ⑤ 3/8-24UNF CPCSU06MD 110 27.5 8.551 (85%) 8.666 (75%) 14.3 19.1 23.8 10 1 ¥4,200 □ 3/8-24UNF CPCSU06ME 110 27.5 8.608 (80%) 8.723 (70%) 14.3 19.1 23.8 10 1 ¥4,200 □ 3/8-24UNF CPCSU06MF 110 27.5 8.666 (75%) 8.780 (65%) 14.3 19.1 23.8 10 1 ¥4,200 □ 3/8-24UNF CPCSU06MM *5 piece set consists of CPCSU06MB ~ CPCSU06MF ¥21,000 □ Roll Taps 3/8-24UNF *5 piece set consists of CPCSU06MA ~ CPCSU06ME ¥21,000 □ ⑥ CPCSU06MS 7/16-14UNC CPCSU07QA 121 33 9.144 (100%) 9.345 (90%) 16.7 22.2 27.8 12 1 ¥4,300 □ 7/16-14UNC CPCSU07QB 121 33 9.247 (95%) 9.443 (85%) 16.7 22.2 27.8 12 1 ¥4,300 □ 7/16-14UNC CPCSU07QC 121 33 9.345 (90%) 9.542 (80%) 16.7 22.2 27.8 12 1 ¥4,300 □ 7/16-14UNC CPCSU07QD 121 33 9.443 (85%) 9.640 (75%) 16.7 22.2 27.8 12 1 ¥4,300 □ Special Thread Taps Simple Inspection Tools ⑦ 7/16-14UNC CPCSU07QE 121 33 9.542 (80%) 9.738 (70%) 16.7 22.2 27.8 12 1 ¥4,300 □ 7/16-14UNC CPCSU07QF 121 33 9.640 (75%) 9.836 (65%) 16.7 22.2 27.8 12 1 ¥4,300 □ 7/16-14UNC CPCSU07QM *5 piece set consists of CPCSU07QB ~ CPCSU07QF ¥21,500 □ 7/16-14UNC CPCSU07QS *5 piece set consists of CPCSU07QA ~ CPCSU07QE ¥21,500 □ Pipe Taps 7/16-20UNF CPCSU07NA 121 33 9.729 (100%) 9.876 (90%) 16.7 22.2 27.8 12 1 ¥4,300 □ ⑧ 7/16-20UNF CPCSU07NB 121 33 9.807 (95%) 9.944 (85%) 16.7 22.2 27.8 12 1 ¥4,300 □ 7/16-20UNF CPCSU07NC 121 33 9.876 (90%) 10.013 (80%) 16.7 22.2 27.8 12 1 ¥4,300 □ 7/16-20UNF CPCSU07ND 121 33 9.944 (85%) 10.082 (75%) 16.7 22.2 27.8 12 1 ¥4,300 □ 7/16-20UNF CPCSU07NE 121 33 10.013 (80%) 10.151 (70%) 16.7 22.2 27.8 12 1 ¥4,300 □ Thread Mills Premium Thread Mills 7/16-20UNF CPCSU07NF 121 33 10.082 (75%) 10.219 (65%) 16.7 22.2 27.8 12 1 ¥4,300 □ ⑨ 7/16-20UNF CPCSU07NM *5 piece set consists of CPCSU07NB ~ CPCSU07NF ¥21,500 □ 7/16-20UNF CPCSU07NS *5 piece set consists of CPCSU07NA ~ CPCSU07NE ¥21,500 □ 1/2-13UNC CPCSU08RA 121 33 10.592 (100%) 10.796 (90%) 19.1 25.4 31.8 12 1 ¥4,500 □ 1/2-13UNC CPCSU08RB 121 33 10.691 (95%) 10.902 (85%) 19.1 25.4 31.8 12 1 ¥4,500 □ Dies ⑩ 1/2-13UNC CPCSU08RC 121 33 10.796 (90%) 11.008 (80%) 19.1 25.4 31.8 12 1 ¥4,500 □ 1/2-13UNC CPCSU08RD 121 33 10.902 (85%) 11.114 (75%) 19.1 25.4 31.8 12 1 ¥4,500 □ 1/2-13UNC CPCSU08RE 121 33 11.008 (80%) 11.219 (70%) 19.1 25.4 31.8 12 1 ¥4,500 □ 1/2-13UNC CPCSU08RF 121 33 11.114 (75%) 11.325 (65%) 19.1 25.4 31.8 12 1 ¥4,500 □ 1/2-13UNC CPCSU08RM *5 piece set consists of CPCSU08RB ~ CPCSU08RF ¥22,500 □ Center Drills Centering Tools ⑪ 1/2-13UNC CPCSU08RS *5 piece set consists of CPCSU08RA ~ CPCSU08RE ¥22,500 □ 1/2-20UNF CPCSU08NA 121 33 11.329 (100%) 11.463 (90%) 19.1 25.4 31.8 12 1 ¥4,500 □ 1/2-20UNF CPCSU08NB 121 33 11.394 (95%) 11.531 (85%) 19.1 25.4 31.8 12 1 ¥4,500 □ JIS ※ = Specified Distribution Items. Made to order products. □=In stock at manufacturer. ⑦-66