Zero degree offset for superior access even for recessed fasteners. Up to 40% longer to access those hard to reach fasteners. Ratcheting box end for maximum productivity. Improved box end adds strength and reduces fastener rounding. Precision broached for a perfect fit 9 Piece XL Gearbox Ratcheting Wrench SAE Set includes: 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, and 3/4. The slim head design fits into restricted areas.