THIS ABILITYONE ITEM IS EQUIVALENT TO THE FOLLOWING MODELS: PROTO 38734877 WILLIAMS 1216MSC PROTO 1216MT500 MATCO MCL16M2 PROTO 5771216MT500 STANLEY 5HL79 PROTO J1216MT500 WILLIAMS JHW1216MSC MAC TOOLS M16CL440 MAC TOOLS MB162KS MATCO MCL16M2 PROTO PRO1216MT500 SNAPON SOEXM16 SNAPON SOEXM16. SKILCRAFT ProGrade Combination Wrenches 16mm BRAND NAME: SKILCRAFT. Premium grade, high polish chrome finish 16mm 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