[Durable] The hex shank screwdriver bit holder is made of chrome vanadium steel, high hardness, rust and corrosion resistance, strong and durable. The magnetic tip effectively holds the screw straight. [Adjustable] Our screwdriver bit holders are height adjustable. Magnetic screwdriver bits can fix the screws at a predetermined depth, allowing precise work with drywall screws. [Function] Strong magnetic tip can fix the drill bit, which is convenient for picking up and hold the screw. It fits 1/4 inch Phillips drill bits. It can drive the drywall screw quickly and accurately. [Specification] The 1/4" hex handle can be easily loaded into electric screwdriver, drill bits and hand screwdrivers. The package includes: 2 screwdriver bit holders and 2 Phillips drywall bits. [Wide range of use] Suitable for deck construction, drywall, particle board or plywood, wood framing, installing plywood subfloors, etc. Ideal as an everyday tool suitable for indoors and outdoors. Feature: --The impact driver bit holder can fix the plasterboard drill bit and drive the plasterboard screw quickly and accurately. --The strong magnetic rod and the 1/4 hex shank makes it easier to grip the screw and the stable connection of the bit. --This screwdriver bit can adjust the depth, which helps to keep der straight screw and has high stability. Specification: Color: Red Material: Steel Size: 60mm x 14mm Hex shank: 6.35mm (1/4") Fir for: 1/4" Shank dirver bit Package Included: 2 x Screwdriver Bit Holders 2 x PH2 Screwdriver Bits