1. This coating is extremely heatresistant and can be used with or without coolant.View Carbide Drill Speeds & FeedsCarbide Drill TolerancesDiameter Tolerance+.0000/-.
This coating is extremely heatresistant and can be used with or without coolant.Premium Sub-Micrograin Solid Carbide Jobber Length DrillALTiN Coated2 Flute25° Helix118° Split Point Jobber Length These drill bits require rigid toolholding and workholding to be run properly and avoid breakageMetric SizesALTIN Coating: A high performance coating for drilling stainlesssteels, carbon steels, alloy steels, and cast iron.