Apex Tool 85450 Gearwrench WR COMB INDEX 5/16

5/16" 12 Point Indexing Ratcheting Combination Wrench. Locking Pivot Joint Enables 13 Different Positions for Access to Hard-To-Get Places. Unlock the Pivot Joint for Rapid Piston Pumping Motion. Off-Corner Loading Design on Box End for Better Grip and Reduced Fastener Rounding. Off-Corner Loading Design on Open End: Stronger Grip, Reduces Fastener Rounding, Up to 25% More Torque. Ratcheting Box End Needs As Little As 5° to Move Fasteners vs. 30° for Standard Wrenches.