4. Accepts most electric screwdrivers, hand screwdrivers and drills. Wide range of uses: Magnetic screwdriver bit holders are suitable for extensive conversion of various drill bits and screwdriver bits.Also used for deck construction, wooden windows, plywood bottom laying, box construction.Specification:Material: chrome vanadium steelSize: 60mmHex shank:6.35 mm (1/4")Color: redSpecial function:1. Powerful magnetic tip holds drill bit, easily picks up and holds 1/4" x 1" Phillips drill bit screws2. To use the drill, it must be placed on the drill stand.To remove, the black release ring must be removed before removing the drill. Package includes: 4 x Magnetic Bit Holders 4 x PH2 Bits Notes: This 60mm magnetic drill holder only accepts single head dispensers,not double head distributors.High Quality Material: Our screwdriver bit adapters are made of chrome vanadium steel for high hardness, rust resistance, long life and durability.Adjustable: Adjustable depth screwdriver bit holder secures thescrews directly to a predetermined depth, allowing precise use of drywall screws.Strong Magnetism: The drill holder is magnetically strong for quick connection or disconnection and ensures that it stays in place while driving.Compatible with: Quick Hex Shank1/4 and hex socket 1/