Stanley Pozi drive bits are one of the most commonly used 1/4-Inch screwdriver pozi bit. All Stanley screwdriver bits are precision machined for the perfect fit forged for added tip strength and ground for long life and durability. The Stanley range of screwdriver bits are suitable for use in industrial construction and DIY applications and will fit most of today's power tools bit holders and hex screwdrivers. Tip size: No.1 Pozidrive. Length. 25 mm x 1/4-Inch hex.