THIS ABILITYONE ITEM IS EQUIVALENT TO THE FOLLOWING MODELS: PROTO 02459584 MATCO MCL11M2 WILLIAMS 1211MSC STANLEY 1211MT500 STANLEY 5771211MT500 STANLEY 5HL71 STANLEY J1211MT500 WILLIAMS JHW1211MSC MAC TOOLS M11CL440 MAC TOOLS MB112KS MATCO MCL11M2 STANLEY PRO1211MT500. SKILCRAFT ProGrade Combination Wrenches 11mm BRAND NAME: SKILCRAFT. Premium grade, high polish chrome finish 11mm 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