Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools ⑤ Selection chart of taps Tapping conditions Machining, in low-speed tapping areaMachining, in low/middle speed tapping area Product symbol LS-N-CT N-CT FC N-CT LA N-CT-SP N-CT-PO EH-CT UH-CT ACHSP MC-AD-CT ① Tap material Surface treatment HF HF HF HF HF HF Coating HF Coating HF Coating HF Coating Name Long, For cast For lightfor cast ironironalloysFor general use,carbideFor high-For ultra high-hardness steelhardness steelFor tappingaluminumcast holesWith oilhole ② ③ ④ Bored Hole Shape For Metric Threads ⑤-18 ⑤-10 ⑤-3 ⑤-20 ⑤-21 ⑤-24 ⑤-28 ⑤-40 ⑤-42 ⑤ For Unified ThreadsFor Whitworth Threads ⑤-13 For Screw Threads used on Sewing Machines Pipe Threads American Pipe Threads For Miniature Threads ⑥ For Trapezoidal Threads ~ S25C Low carbon steels S25C ~ S45C Medium carbon steels S45C ~ High carbon steels ⑦ SCM Alloy steels 25 ~ 35HRC Heat treated steel 35 ~ 45HRC Heat treated steel 45 ~ 55HRC Heat treated steel ◆◆ ◎ ⑧ 55 ~ 63HRC Heat treated steelSUSStainless steels(SUS) ◆◆ ◎ SKD Tool steels SC Cast steels FC Cast irons ◆ ◎ ◆ ◎ ⑨ FCD Ductile cast irons ◆ ○ ◆ ○ Cu Copper Bs Brass ◆ ◎ BsC Brass castings ◆ ◎ ◆ ◎ ◆ ◎ PB Bronze ◆ ◎ ⑩ AL Wrought aluminum ◆ ◎ ◆ ◎ ◆ ◎ AC, ADC Wrought aluminum ◆ ◎ ◆ ◎ ◆ ◎ ◆ ◎ ◆ ◎ Mg Magnesium alloy die castings ◆ ◎ ZDC Zinc alloy die castings ◆ ◎ ◆ ◎ ◆ ◎ ◆ ◎ ⑪ Titanium alloys Nickel base alloys Thermosetting plastic Thermoplastic resin ⑤-1