OHZ4485 Features: * Cutting spurs have 3 cutting edges for added durability * Full screw tip allows bit to self feed * Grooved hex shank prevents slipping in drill chuck or bit extension * Tri-Flute design for faster chip ejection * Cutting Diam: 7/16 in * Overall : 6 in * Packing Type: Carded * Point Shape: Self Feed Screw * Shank Diam: 1/4 in * Shank Type: Quick Change Hex * : 0.18 lb