The Sunex Tactical Series Wrenches, Nos. 9615 and 9616, feature a patented jaw design that provides an additional contact surface on a hex fastener for up to 30 percent more torque, according to the company. The unique jaw also resists slippage on the fastener. Each wrench has an OSHA-compliant tethering hole, exceeds ANSI standards and has a lifetime warranty.