KDT9509 Features: -The ratcheting box end needs as little as 5 degrees to move the fastener.-It"s 15 degree offset provides additional knuckle clearance.-Surface drive nearly eliminates rounding of the fastener.-13 Piece SAE Reversible GearWrench Set. Includes: -Set includes: 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", and 1”.-GrearWrench products are warranted for life to be free of defects in material and workmanshipThis SAE wrench set is unique for its ability to reverse. It uses a reversing lever which eliminates the need to remove the wrench from the fastener to change direction. It"s 15 degree offset provides additional knuckle clearance. It"s simple and easy to use. This set includes 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", and 1”.. Warranty: -Sets & Kits do not have warranty/ see individual pcs for details.