Общий каталог Yamawa 2022 - 2023 - страница 646

⑦ Selection chart of taps Recommended tap ◎：Most suitable tap ○：Suitable tap Recommended ◆：Insoluble tapping fluid ◆：Water-soluble Machining, in low- Tapping conditions speed tapping area Machining, in low/middle speed tapping area N-CT LA Product symbol NT N-RS STI AL-HT STI AL-SP STI AL-PO STI SL Tr SL LH Tr Spiral Fluted Taps (for blind hole) STI ① Tap material HSS HSS NI HSS HSS NI HSS HF HSS HSS Surface treatment For helical coil For For trapezoidal For general For helical coil wire Name use wire screw screw thread inserts trapezoidal threads For thread inserts threads left-hand threads Spiral Fluted Taps (for through hole) ② Spiral Pointed Taps (for through hole) ③ Hand Taps ④ Bored Hole Shape For Metric Threads ⑦-27 ⑦-25 ⑦-3 ⑦-10 ⑦-18 ⑦-26 Cemented Carbide Taps For Unified Threads ⑦-5 ⑤ For Whitworth Threads ⑦-28 For Screw Threads used on Sewing Machines Pipe Threads American Pipe Threads Roll Taps For Miniature Threads ⑥ For Trapezoidal Threads ⑦-42 ⑦-43 ～ S25C Low carbon steels ◆ ◎ ◆ ◎ ◆ ◎ S25C ～ S45C Medium carbon steels ◆ ○ ◆ ◎ ◆ ◎ S45C ～ High carbon steels Special Thread Taps Simple Inspection Tools ⑦ SCM Alloy steels 25 ～ 35HRC Heat treated steel 35 ～ 45HRC Heat treated steel 45 ～ 55HRC Heat treated steel Pipe Taps 55 ～ 63HRC Heat treated steel ⑧ SUS Stainless steels（SUS） SKD Tool steels SC Cast steels FC Cast irons Thread Mills Premium Thread Mills ⑨ FCD Ductile cast irons Cu Copper Bs Brass ◆ ○ ◆ ◎ BsC Brass castings ◆ ○ ◆ ◎ Dies PB Bronze ◆ ○ ◆ ◎ ⑩ AL Wrought aluminum ◆ ◎ ◆ ◎ ◆ ◎ ◆ ◎ AC, ADC Wrought aluminum ◆ ◎ ◆ ◎ ◆ ◎ ◆ ◎ ◆ ◎ Mg Magnesium alloy die castings ◆ ◎ ◆ ◎ ZDC Zinc alloy die castings ◆ ◎ ◆ ◎ ◆ ◎ ◆ ◎ ◆ ◎ Center Drills Centering Tools Titanium alloys ⑪ Nickel base alloys Thermosetting plastic Thermoplastic resin ⑦-1