Size : 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1" 72-tooth ratcheting box end needs a minimal 5° to move fasteners vs. 30° for standard wrenches. Flush mounted reversing lever allows you to change direction without removing the wrench. Off-corner loading design on box end provides better grip and reduces fastener rounding. 15° offset offers",creased clearance.