TURNINGTAPPINGHOLEMAKINGSOLID END MILLINGINDEXABLE MILLING Indexable Drills • Top Cut 4™ TC4 • Drill Depth • X-Offset Capabilities • Hole Tolerance 2 x D/3 x D 4xD 5xD Diameter X-offset D1 max Hole X-offset D1 max Hole X-offset D1 max Hole range value value tolerance value value tolerance value value tolerance mm max. in mm mm mm max. in mm mm mm max. in mm mm mm Insert size (in) (max. in inch) (in) (in) (max. in inch) (in) (in) (max. in inch) (in) (in) A 12,00–13,99 0,5 D1 + 1mm +/- 0,20 0,5 D1 + 1mm +/- 0,35(.473–.531)(0.020)(D1 + 0.039")(+/- 0.008)(0.020)(D1 + 0.039")(+/-0.014)——+/- 0,35(+/- 0.014) B 14,00–18,99 0,5 D1 + 1mm +/- 0,20 0,5 D1 + 1mm +/- 0,35(.563–.734)(0.020)(D1 + 0.039")(+/- 0.008)(0.020)(D1 + 0.039")(+/-0.014)——+/- 0,35(+/- 0.014) C 19,00–23,99 0,5 D1 + 1mm +/- 0,20 0,5 D1 + 1mm +/- 0,35(.750–.938)(0.020)(D1 + 0.039")(+/- 0.008)(0.020)(D1 + 0.039")(+/-0.014)——+/- 0,35(+/- 0.014) D 24,00–29,99 0,8 D1 + 1,6mm +/- 0,20 0,8 D1 + 1mm +/- 0,35(.969–1.156)(0.031)(D1 + 0.063")(+/- 0.008)(0.031)(D1 + 0.039")(+/-0.014)——+/- 0,35(+/- 0.014) E 30,00–36,99 0,8 D1 + 1,6mm +/- 0,20 0,8 D1 + 1mm +/- 0,35(1.188–1.438)(0.031)(D1 + 0.063")(+/- 0.008)(0.031)(D1 + 0.039")(+/-0.014)——+/- 0,35(+/- 0.014) F 37,00–45,99 0,8 D1 + 1,6mm +/- 0,25 0,8 D1 + 1mm +/- 0,38(1.469–1.750)(0.031)(D1 + 0.063")(+/- 0.010)(0.031)(D1 + 0.039")(+/-0.015)——+/- 0,38(+/- 0.015) G 46,00–56,99 1 D1 + 2mm +/- 0,25 0,8 D1 + 1mm +/- 0,38(1.813–2.219)(0.039)(D1 + 0.079")(+/- 0.010)(0.031)(D1 + 0.039")(+/-0.015)——+/- 0,38(+/- 0.015) H 57,00–68,00 1 D1 + 2mm +/- 0,28 0,8 D1 + 1mm +/- 0,42(2.250–2.500)(0.039)(D1 + 0.079")(+/- 0.011)(0.031)(D1 + 0.039")(+/-0.017)——+/- 0,42(+/- 0.017) NOTE: All speed conditions are for stable conditions. For unstable conditions, it is suggested to reduce starting speeds by 10%. For interrupted cuts, reduce by 20%. For 4 x D, it is highly recommended to start with feed and speed values reduced by 10% less than above data. For 5 x D, diameter range 12–23,99mm (insert sizes A to C), it is highly recommended to start with feed and speed values reduced by 20% less than above data. For 5 x D, diameter range 25–68mm (inserts sizes D to H), it is highly recommended to start with feed and speed values reduced by 15% less than above data. For 4 x D and 5 x D, it is recommended to reduce feed rate during entry and exit by 30–50%. C74 widia.com