pMorse Jobber Length Drill, Series 1355, Imperial, 2564 in Drill Size Fraction, 03906 in Drill Size Decimal inch, 518 in Overall Length, 334 in Cutting Depth, Parabolic Flute, 334 in Flute Length, 2564 in Shank, Straight Shank, 135 deg Point, SelfCenteringSplit Point, Right Hand Cutting, HSS Cutting Edge, HSS, Bright, Applicable Materials Aluminump.