Chisel for Spline Tool, Chisel Type Bushing Tool, 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 3/4 in, Overall Length 9 3/4 in, Chisel Collar Shape Spline, For Tool Type Rotary Drill