XtremepowerUS Metric MM Pro-Grade Extra Long Allen Hex Bit Socket, 7-Piece Constructed of high-grade Chrome-vanadium alloy steel; chrome-mirror finish Extra Long Set: 110mm x 3, 4, 5, 6, 7, 8, 10mm Secure-fit latched ABS carry and storage case Drop Forged & Steel Heat Treated S2 Bits