[Durable] The hex handle screwdriver bit holder is made of high hardness high speed steel, rustproof and corrosion resistant, sturdy and durable. The magnetic tip effectively holds the screw straight. [Adjustable] Our screwdriver bit holder is height adjustable. The magnetic screwdriver bit can hold the screw at a predetermined depth, allowing precise use of drywall screws. [Function] The strong magnetic head can fix the drill bit and facilitate the selection and placement screws. It fits a 1/4" Phillips drill bit. It drives drywall screws quickly and accurately. [Specifications] The 1/4" hex handle can easily fit the electric screwdrivers, drill bits and hand screwdrivers. Package includes: 2 screwdriver bit holders and 2 Phillips drywall drill bits. [WIDELY USED] Suitable for building decks, drywall, particle board or plywood, framing wood, installation of plywood subfloors, etc. Ideal as a daily tool suitable both indoors and outdoors.