Neiko 00238A Adjustable Depth Screwdriver Bit Holder with Magnetic Tip and Hardened Shaft, Purple ELIMINATE GUESSWORK: Impact shaft ready, adjustable depth screwdriver bit holder to set screws in straight and to a predetermined depth SUPERIOR STRENGTH: Hardened shaft resists corrosion and ensures long-lasting durability STRAIGHT AND FAST: Drill attachment helps speed up the drilling process with less worry about wobbling or stripping LOCK AND LOAD: Attaches to impact shafts and high torque drills with a wide adjustment range and no-nonsense bit changes VERSATILE USE:Use for deck building, wood framing, installing plywood subfloor, building crates, and more