85615 Features: 15pct longer than current flex head wrenches, or up to 37pct longer than the competition. Increased length to access those hard to reach fasteners. Surface Drive Plus™ provides stronger grip on fasteners and nearly eliminates fastener rounding. 13 locking positions with flexible head. Ratcheting box end needs as little as 5 degrees to move fastener vs. 30 degrees for standard box end wrenches. XL Locking Flex Combination Ratcheting Wrench - 15mm.