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177BLACK MAMBAHigh Performance 3XD DRILLS TECHNICAL DATASpeeds and FeedsSTRAIGHT FLUTE DRILLMaterial Group Material TypeCutting Speed Straight Flute Drillsm/min SFMSteel Structural Steel 60 193Free Cutting Steel 60 193Unalloyed Heat Treatable Steel 45 147Unalloyed Case Hardened Steel 45 147Alloyed Case Hardened Steel 30 98Nitriding Steel 30 98Acid Resistant / Stainless Steel, 40 131Stainless Steel Sulphured Austenitic Steel, MartensiticHigh Tensile Steel Low Carbon Steel 55 180Medium Carbon Steel 45 147Alloyed Heat Treatable Steel 30 98Tool Steel 30 98High Speed Steel 25 82Spring Steel 30 98Straight Flute DrillTECHNICAL DATA
