Features: Applications: Suitable for Detroit Diesel Series 60. Similar to J-44706. (NOTE: need drill it out using a cobalt bit at 7/16″ and then drill it again at 1/2″. Drill from the bottom so the bit doesn’t wobble and screw up the 12 point.) Nice Design: ①Designed to drive the side of the fastener instead of the corner, because of the High-torque, 12-point socket design grips the flat sides of fasteners, not just the corners, preventing round-off. ②Radius corner design – to extend the life of fasteners. ③Extra-deep broach accommodates longer fasteners. ④Stepped outside diameter for proper clearance and access to the fastener. .