Informational Icons Guide (continued) Tapping Icons HSS-E-PM: HSS-E: High-Speed High-Speed Steel Tapping: Threading: Threading: Steel with Cobalt Alloy with Cobalt Alloy for Blind Hole Through Hole Blind Hole for Materials with Materials with Higher Higher Hardness Hardness (PM = Power Metal Steel) HM: (Carbide) Square Shank Chamfer Form C Chamfer Form D Chamfer Form E(2–3)(3.5–5)(1.5–2) 3–5 Plug Chamfer (3–5) Tapping Helix:Angle: 0° Tapping Helix:Angle: 10° Tapping Helix:Angle: L8° Tapping Helix:Angle: 15° Tapping Helix: Tapping Helix: Tapping Helix: Tapping Helix: Tapping Helix: Angle: L15° Angle: 25° Angle: 30° Angle: 42° Angle: 45° DIN Number 371 DIN Number 374 DIN Number 2174 DIN Number 376 Tapping: ThroughCoolant Flood Coolant:Tapping Through Coolant:Axial: Tapping ISO 2 Manufacturer’sSpecs: JIS Class of Fit: 2B Class of Fit: 3B Class of Fit: 6H Class of Fit: 6HX Class of Fit: 6G ANSI Unified Course Unified Fine Thread: Unified Fine Unified Course ISO Metric Thread: J Profile J Profile Thread Thread Coarse Thread ISO Metric Fine Thread DIN — German Institute for Standardisation Z150 widia.com