
Overall length L Thread length ℓ Thread + Neck length ℓn Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk ⑥ ANSI TYPE:1 TYPE:2 Spiral Fluted Taps (for blind hole) ① Spiral Fluted Taps (for through hole) ② TYPE:3 TYPE:4 Spiral Pointed Taps (for through hole) ③ Hand Taps ④ Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe TYPE (inch) (inch) (inch) (inch) (inch) (inch) (inch) No.3-48UNC H2 388417M 2P 2.205 0.354 0.681 1.28 0.141 0.11 0.187 4 2 Cemented Carbide Taps No.3-48UNC H3 388418M 2P 2.205 0.354 0.681 1.28 0.141 0.11 0.187 4 2 ⑤ No.3-56UNF H2 388419M 2P 2.205 0.354 0.681 1.28 0.141 0.11 0.187 4 2 No.3-56UNF H3 388420M 2P 2.205 0.354 0.681 1.28 0.141 0.11 0.187 4 2 No.4-40UNC H3 388423M 4P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 No.4-40UNC H3 388421M 2P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 Roll Taps ⑥ No.4-40UNC H5 388424M 4P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 No.4-40UNC H5 388422M 2P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 No.4-48UNF H3 388427M 4P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 No.4-48UNF H3 388425M 2P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 No.4-48UNF Special Thread Taps Simple Inspection Tools H5 388428M 4P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 ⑦ No.4-48UNF H5 388426M 2P 2.205 0.354 0.709 1.28 0.141 0.11 0.187 4 2 No.5-40UNC H3 388431M 4P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 4 2 No.5-40UNC H3 388429M 2P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 4 2 No.5-40UNC H5 388432M 4P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 4 2 Pipe Taps No.5-40UNC H5 388430M 2P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 4 2 ⑧ No.5-44UNF H3 388435M 4P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 4 2 No.5-44UNF H3 388433M 2P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 4 2 No.5-44UNF H5 388436M 4P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 4 2 No.5-44UNF H5 388434M 2P 2.205 0.433 0.736 1.339 0.141 0.11 0.187 4 2 Thread Mills Premium Thread Mills No.6-32UNC ⑨ H3 388440M 4P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 4 2 No.6-32UNC H3 388437M 2P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 4 2 No.6-32UNC H5 388441M 4P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 4 2 No.6-32UNC H5 388438M 2P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 4 2 No.6-40UNF H3 388444M 4P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 4 2 Dies ⑩ No.6-40UNF H3 388442M 2P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 4 2 No.6-40UNF H5 388445M 4P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 4 2 No.6-40UNF H5 388443M 2P 2.205 0.433 0.748 1.339 0.141 0.11 0.187 4 2 No.8-32UNC H3 388448M 4P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 4 2 Center Drills Centering Tools No.8-32UNC H3 388446M 2P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 4 2 ⑪ No.8-32UNC H5 388449M 4P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 4 2 No.8-32UNC H5 388447M 2P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 4 2 No.8-36UNF H3 388452M 4P 2.48 0.512 0.827 1.535 0.168 0.131 0.25 4 2 ANSI ※ This product is different from JIS products in shape and dimensions, please be careful when using. ⑥-32