
Steel <35 HRC Steel >36–48 HRC PH and Ferritic Stainless Steel <35 HRC PH and Ferritic Stainless Steel >35 HRC Stainless Steel Grey Cast Iron Ductile Cast Iron Wrought Aluminium Cast Aluminium Copper, Copper Alloys Iron Based Cobalt Based Nickel Based Titanium Alloys Hardened Steels 49–55 HRC Hardened Steels 56–68 HRC High-Performance Taps Selection Guide P M K N S H 1, 2, 3, 4, 5, 9, 10,6, 711 12, 13.1 13.2 14.1, 14.2,14.3, 14.4 15, 16 17, 18,19, 20 21 22, 23,24, 25 26, 27, 28 31, 32 33, 34, 35 36 37 38.1, 38.2,40.1,40.2,41.1 39.1,41.2 recommended cutting page(s) parameters Spiral-Point and Left-Hand Spiral-Flute Taps (continued)        Y4 Y85        Y5 Y85        Y6 Y85   Y7 Y85  Y8 Y85    Y9 Y85       Y10 Y85           Y11 Y86           Y14 Y86           Y17 Y86 Spiral-Flute Taps (continued)        Y21 Y85        Y20 Y85        Y22 Y85        Y23 Y85        Y24 Y85        Y25 Y85    Y26 Y85    Y28 Y85   Y30 Y85  Y31 Y85  Y32 Y85 widia.com X3