3Pcs Quick Change Release Magnetic Screwdriver Nut Drill Bit Holder Extension Set, 1/4" 3/8" 1/2" Hex Shank Impact Driver Socket Adapter Extension Bar Power Drill Bits Repair Tools Kit (6 Pcs Set)

Universal Socket Wrench Adapter 1/4" 3/8" 1/2" turns any power drill into a power nut driver Sturdy spring-loaded ball bearing holds sockets securely in place Sockets snap-on tightly and won't slip off. With a 1/4" hex drill bits fits all quick-change chucks adapter system. christmas gift for dad/father, husband, boyfriend, men, DIY handyman. Drill socket adapter set turn your power tool/drill tools/hand tools into versatile nut driver set. sandblasted finish, color coded for easy recognition. Specification: Material: Chrome Vanadium Steel Shank Size: 1/4" Hex Shank (6.35mm) Size: 1/4 * 1/4 * 65mm length -- 1/4 " hex shank can be Converted to 6.3mm square head 3/8 * 1/4 * 65mm length -- 1/4 " Hex Shank can be Converted to 9.4mm square head 1/2 * 1/4 * 73mm length -- 1/4 " Hex Shank can be Converted to 12.5mm square head 1/4 Inch Hex Quick Change Release Bar 1/4" Hex shank quick change and adjustable collar, one hand operation, fit most common drill chucks and tools. Secured Bit Holder built in strong permanent magnet(the hole part), shaft holds bit securely, great for working with hard to reach screws. Built-in magnetic, fast quick release will greatly improve work. Suitable for electric, pneumatic screwdrivers and other screwdriver bits of power tools, drill extended. Quick change drill bit is great for extending all kinds of screwdriver bits, drills, converts any variable-speed drill into a power screwdriver Including 2.5" 4" 6" meet your various needs. Specifications: Material: Chrome Vanadium Steel Shank: 1/4" Hex Shank Length: 60mm/2", 100mm/4", 150mm/6" Note: Only the bottom of the hole part is magnetic, the hex shank is NOT magnetic!! These chucks can not work with double head bits. Package Include: 3 x Drill Bit Socket Adapter 3 x Magnetic Screwdriver Bit Holder