Sipery 10mm/0.4" Magnetic Nut Driver Bits Metric 1/4 Hex Shank Power Impact Nut Driver Socket Driver 5Pcs

Pacakge - 5Pcs Power Nut Driver, Diameter of Shank: 6.35mm / 1/4", Hex Socket Diameter: 10mm/0.4"., Material - Impact Nut Driver Bit made of heat treated & sandblasted chrome vanadium steel., Easy to Use - 1/4 nut driver very easy to be installed and dismantled, not easy to fall off when it's using., High Strength - Hex Shank Nut Drivers is high strength, good toughness and high occlusal degree., Appliction - Widely used in household DIY, auto parts, woodworking, professional machine repairing, etc.