THIS ABILITYONE ITEM IS EQUIVALENT TO THE FOLLOWING MODELS: PROTO 02459600 WILLIAMS 1213MSC PROTO 1213MT500 MATCO MCL13M2 PROTO 5771213MT500 PROTO J1213MT500 WILLIAMS JHW1213MSC MAC TOOLS M13CL440 MAC TOOLS MB132KS MATCO MCL13M2 PROTO PRO1213MT500 SNAPON SOEXM13 SNAPON SOEXM13. SKILCRAFT ProGrade Combination Wrenches 13mm BRAND NAME: SKILCRAFT. Premium grade, high polish chrome finish 13mm combination wrench with open and box ends. Made of forged and heattreated steel for extra strength and durability, these combination wrenches feature a continuous arc design that distributes applied stress over the entire radius of the open end. The 12point boxend features a 7.5 degree offset broaching that allows users to flip the end for a more advantageous grip in tight spaces. Available in a variety of sizes, these U.S.A. made, Berry Amendment compliant wrenches meet or exceed SAE Aerospace Standard 954 for 12point fasteners and carry a limited lifetime warranty. SDS SHEETS: Yes. ENVIRONMENTAL SUSTAINABILITY (GREEN) INFO: PreConsumer Recycled Content: 0