Chisel for Spline Tool Chisel Type Bull Point Chisel Shank Type - Machining Spline Shank Diameter 3/4 in Shank Hex Size 3/4 in Shank Length 2 in Measurement System Fractional Inch Head Width 1 23/32 in Overall Length 18 in Chisel Collar Shape Spline For Tool Type Rotary Drill