ITEM NAME:Hex Key Allen Bit Set Quick Change Connect Impact Driver Power Drill New Hot Descriptio n Description: Suitable for electric screwdrivers, hand screwdrivers, electric drills, air drills and so forth. Hex Head Screwdriver Bits are made of S2 alloy steel which is a commonly used material in hardware with high hardness. Magnetic bits are firmly fixed on screwdrivers. 10pcs SAE 5/64-5/16 Inch Hex Head Screwdriver Bit 1/4 Inch Hex Shank Magnetic Screwdriver Bits Specifications: Specifications: Material: chrome vanadium steel (magnetic) Shank :1/4"(6.35mm) SIZE: 5/64" (1.98mm), 3/32" (2.38mm), 7/64" (2.78mm), 1/8" (3.17mm),9/64" (3.5mm), 5/32" (3.97mm),3/16" (4.76mm), 7/32" (5.56mm), 1/4" (6.35mm),5/16" (7.94mm); Package Included: 10pc Hex Head Long Allen Bit Set Quick Connect Shank impact driver drill Magneti Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. Whatever the ending's perfect or not, you can't disappear from my world Hex Key Allen Bit Set Quick Change Connect Impact Driver Power Drill New Hot.10pc Hex Head Long Allen Bit Set Quick Connect Shank impact driver drill Magneti. Hex Head Screwdriver Bits are made of S2 alloy steel which is a commonly used material in hardware with high hardness.