Tool Set for denizen Cars The Neiko XZN manifold Square Spline Bit Socket Set is an model toolset for mechanics using practice session torque tools on denizen self-propelling and motorcycle engines, where XZN/triple squarely fasteners are parcel of land. 12-stared XZN/triple squarely fasteners are often in high up torque self-propelling applications so much as cylinder head bolts and drive train components. Here the more angles of the in proportion to bit sockets can the increased torque needed. Each of the 10 quantity bits in this set is in its have universally oriented drive socket -- either 1/4-inch, 3/8-inch, or 1/2-inch -- to increase voltage torque and limit bit stress. Bits are of heat-treated S2 steel alloy for character hardness, reducing wear-outs and ensuring longevity, while each bit socket is process plated to prevent oxidization and corrosion. Bit sockets or exceed ANSI standards. Set Includes • 10 quantity XZN manifold squarely spline bit sockets o 1/4-inch drive : 4 mm, 5 mm, 6 mm o 3/8-inch drive : 8 mm, 9 mm, 10 mm, 12 mm, 14 mm -LRB- tamper-proof -RRB- o 1/2-inch drive : 16 mm -LRB- tamper-proof -RRB-, 18 mm -LRB- tamper-proof -RRB- • Hardshell storage case .