General Purpose Heavy Duty, Series 300, #50 Drill - Wire, 0.07 in Drill - Decimal Inch, 1-1/2 in Overall Length, 5XD Cutting Depth, Spiral Flute, 5/8 in Flute Length, Straight Shank, 118 deg Point, Right Hand Cutting Direction, Solid Carbide Cutting Edge, Solid Carbide, Bright, Applicable Materials: Cast Iron, Hardened Steel, Special Alloys, Stainless Steel, Steel and Non-Ferrous Metal Materials