Dormer Combined Drill and Countersink, Center Drill Double End, Series: JABRO® Diamond JD630, 5/64 in Drill Size - Fraction, 0.0781 in Drill Size - Decimal Inch, #2 Point Dia, 3/16 in Body Dia, 1-7/8 in Overall Length, 5/64 in Flute Length, 3/16 in Shank, Straight Shank, 118 deg Point, 60 deg Included Angle, Right Hand Cutting, HSS-E Cutting Edge, HSS-E, Bright, Applicable Materials: Alloy Steel, Aluminum, Aluminum Alloy, Brass, Bronze, Carbon Steel, Cast Iron, Cermet, Copper, Copper Alloy, Free Machining Stainless Steel, Hardened Steel, Magnesium and Nickel