High quality material: Our screwdriver bit adapters are made of chrome vanadium steel for high hardness, rust resistance, long life and durability.Adjustable: The Adjustable depth screwdriver bit holder fixes screws directly at a predetermined depth, allowing precise use of drywall screws.Strong magnetism: The drill holder is magnetically strong for connection or disconnection fast and ensures it stays in place while driving.Compatible with: 1/4 quick hex shank and 1/4 hex socket. 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 steel p>Size: 60 mmHex shank:6.35 mm (1/4")Color: redSpecial function:1. The Powerful magnetic tip holds the drill bit, easily picks up and holds the 1/4" x 1" Phillips drill screws2. To use the drill, it must be placed on the drill stand. remove it, the black release ring must be removed before removing the drill.Package includes:4 x Magnetic Bit Holders4 x PH2 BitsNotes:This drill holder 60mm magnetic only accepts single head dispensers, not double head dispensers.