Performance Tool metric hex socket set built from chrome vanadium alloy steel for strength and longevity on V-twin engine work. Includes 3mm through 10mm sockets with a polished nickel-chrome finish, backed by a lifetime warranty. Features Chrome vanadium alloy steel construction Hardened alloy steel bits Polished nickel-chrome plated finish Lifetime warranty Includes 3, 4, 5, 6, 7, 8, 9, and 10mm sockets Specifications Brand: Performance Tool Manufacturer Part #: W38890 UPC: 039564388903 Dimensions: 3.55 in L x 8.75 in W x 0.7 in H Weight: 0.81 lbs Country of Origin: China (Taiwan) Fitment Metric hex sockets work on fasteners across V-twin motorcycles including Harley-Davidson and Indian models. Frequently Asked Questions What sizes are included in this set? 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, and 10mm hex sockets. Is this set lifetime warranty? Yes — Performance Tool backs this set with a lifetime warranty against defects in material and workmanship. Will these sockets work on my Harley or Indian? Yes. These metric hex sockets fit fasteners on both Harley-Davidson and Indian Motorcycle V-twin engines and components. What material are the sockets made from? Chrome vanadium alloy steel construction with hardened alloy steel bits and a polished nickel-chrome plated finish for corrosion resistance.