Triumph® Hex Shank Drill, Series: HEXT4, 1/16 in Drill - Fraction, 0.0625 in Drill - Decimal Inch, 2-1/4 in Overall Length, 5/8 in Cutting Depth, 5/8 in Flute Length, 1/4 in Shank, 135 deg Point, Split/Self-Centering Point, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials: Hard Wood, Soft Wood, Plywood, Particle Board, Plastic and Metal