Jobber Length Drill Bit, Drill Bit Size 5/16 in, Drill Bit Point Angle 118 °, High Speed Steel/ SHANK DIAMETER: 0.312 INCHES NOMINAL SHANK STYLE: 76 STRAIGHT ROUND OVERALL LENGTH: 4.500 INCHES NOMINAL CUTTING END STYLE: 52 GENERAL PURPOSE NOMINAL CUTTING DIAMETER: 0.3125 INCHES CUTTING ROTATION DIRECTION: LEFT-HAND FLUTE LENGTH: 3.187 INCHES NOMINAL FLUTE QUANTITY: 2 POINT TYPE: CONVENTIONAL POINT ANGLE: 118.0 DEGREES NOMINAL SPECIAL FEATURES: JOBBERS LG; FRACTIONAL SIZE 5/16 MATERIAL: STEEL OVERALL