Toolschest.com|Toolschest.com. PTD 052605PTD 0.078 x 12 in. CO500-12 Series High Speed Steel Heavy Duty Aircraft Extension Cobalt Drill Bit - Pack of 12

CO50012 Series High Speed Steel Heavy Duty Aircraft Extension Cobalt Drill Bit Features. Cobalt is harder than high speed steel and provides better wearresistance. It is commonly used on high tensile alloys. Oxide gold finish provides a polished finish and prevents chip building galling and welding on a workpiece. It is commonly used on low carbon stainless steel and ferrous metals. Low thrust design selfcentering. Parallel web configuration. No coolant channel. Pack of 12Applicable Materials. Free Machining Stainless Steel Austenitic Ferritic Austenitic Martensitic Precipitation Hardened Steel Lamellar Graphite Nodular GraphiteMalleable Cast Iron Nickel Alloyed Alloy SteelHardened Steel and Tempered SteelSpecifications. Cutting Depth 4XD. Cutting Direction Right Hand. Cutting Edge Material HSSE. Diameter 564 in. Finish Bronze. Flute Length 1 in. Flute Type Spiral. Material HSSECo. Number of Flutes 2. Overall Length 12 in. Point Angle 135 deg. Point Type SelfCenteringSplit. Series CO50012. Shank Size 564 in. Shank Type Straight. Type Type J Extra Length Heavy Duty