Diablo Auger Bit DAG3160 1 1 2 Inch x 17 1 2 Inch (Self Feeding Dura Tip Dual Edge 7 16 Hex Shank Wood Nail Embedded Timber Drilling) Circular Saw Blades corded sidewinders corded sidewinders High Clearance 5 Inch TPR Swivel Casters: Four 360 degree thermoplastic rubber casters glide smoothly over extension cords and jobsite debris this wood boring bit pulls itself through structural framing studs and thick floor joists while slicing through embedded steel fasteners without binding Pressure Treated Timber Approximate Tool Weight 3 21 100 lbs (1 46 100 kg) Universal Product Code GTIN 008925154846 Pro Tip: When using this 1 1 2 inch auger bit with a high torque 7 16 inch hex impact wrench