[High Quality Magnetic Bit Holder] The main material of magnetic nut driver bit sets is chrome vanadium steel, forged by high temperature quenching and heat treatment. It has good abrasion resistance, high hardness, high torque and corrosion resistance. . Super easy to grab and hold screws. Provides great convenience for your work [Easy to Use Impact Driver Bit] 1/4" socket adapters are very easy to use, suitable for a variety of quick change chucks. Size: Length: 65mm / 2.56 inch; Hex socket: 10mm; Hex shank: 1/4 inch [Excellent Compatibility Adapter Socket] Magnetic nut driver set is compatible with all 1/4 adapter shank drill, hand drill electric drill, rechargeable drill, lithium drill, impact driver, air drill, pneumatic screwdriver, manual screwdriver and more [Reliable After-Sales Service] Our company provides 12-month warranty, if the product has any problems, please don't feel free to contact us at any time.We will try our best to help you.Free replacement or 100% refund