This is a 3 x 50mm Pozi bit from the Draper Tools Group D range, designed to drive Pozidriv (PZ) screws reliably in both manual and powered tools. Its primary use is to transfer torque cleanly into PZ screw heads during assembly and repair work, making it suitable for tasks where accurate seating and reduced cam‑out are important, such as cabinetry, joinery and mechanical assembly.

The bit is manufactured from S2 tool steel and is heat treated and tempered to provide high hardness and toughness (typical hardness in the 58–62 HRC range), giving good wear resistance under repeated use. The tip is formed to Pozidriv geometry to ensure correct engagement with PZ screw recesses and to minimise slippage. A 1/4" (6.35 mm) hex shank conforms to DIN 3126 / ISO 1173 quick‑change dimensions, allowing secure fitment in standard bit holders, chucks and impact drivers. The overall length is 50 mm, a common working length that balances access in shallow recesses with control in powered operations. A black phosphate finish gives basic protection against corrosion and helps reduce galling under heavy use.

Typical applications include construction and site assembly, furniture manufacture, kitchen and bathroom fitting, joinery, electrical installation and light automotive work. The PZ3 size is used where larger Pozidriv screws are specified — for example in structural timber fixings, decking, longer furniture screws and many mechanical fastenings. The bit is suitable for use with cordless screwdrivers, impact drivers and powered drills when used with a suitable holder and torque setting.

Key benefits of this Pozi bit are the S2 tool steel strength and heat treatment for long life, the 1/4" hex shank compatibility with industry‑standard holders, and the Pozidriv tip profile which reduces cam‑out and wear on both bit and screw. The black phosphate finish offers improved corrosion resistance compared with untreated steel. Duchy Fasteners stocks a wide range of Pozi and Phillips bits in multiple lengths and sizes; this item is available as single pieces and in multi‑packs to suit trade and DIY quantities.