Общий каталог Yamawa 2022 - 2023 - страница 611

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 N-RS Roll Taps for Non-Ferrous Materials ANSI Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe TYPE Spiral Fluted Taps (for blind hole) (inch) (inch) (inch) (inch) (inch) (inch) (inch) ① 7/16-20UNF H7 388499M 2P 3.937 0.906 - 2.008 0.323 0.242 0.406 6 4 1/2-13UNC H5 388506M 4P 4.331 1.024 - 2.205 0.367 0.275 0.437 6 4 1/2-13UNC H5 388504M 2P 4.331 1.024 - 2.205 0.367 0.275 0.437 6 4 1/2-13UNC H7 388507M 4P 4.331 1.024 - 2.205 0.367 0.275 0.437 6 4 Spiral Fluted Taps (for through hole) 1/2-13UNC H7 388505M 2P 4.331 1.024 - 2.205 0.367 0.275 0.437 6 4 ② 1/2-20UNF H5 388510M 4P 4.331 1.024 - 2.205 0.367 0.275 0.437 6 4 1/2-20UNF H5 388508M 2P 4.331 1.024 - 2.205 0.367 0.275 0.437 6 4 1/2-20UNF H7 388511M 4P 4.331 1.024 - 2.205 0.367 0.275 0.437 6 4 1/2-20UNF H7 388509M 2P 4.331 1.024 - 2.205 0.367 0.275 0.437 6 4 Spiral Pointed Taps (for through hole) ③ Number of oil grooves : Metric thread : =1 Unified thread : No.4 and smaller=non, No.5 and larger=1 For M6, 1/4 and smaller, external centers of 2P chamfer taps are removed. Hand Taps ④ Cemented Carbide Taps ⑤ Roll Taps ⑥ Special Thread Taps Simple Inspection Tools ⑦ Pipe Taps ⑧ Thread Mills Premium Thread Mills ⑨ Dies ⑩ Center Drills Centering Tools ⑪ ANSI ※ This product is different from JIS products in shape and dimensions, please be careful when using. ⑥-34