POZI – Impact Driver Bits – PZ2 – No.2 x 90 (1 pcs)

If you have ever snapped a standard bit mid-drive on a long run of screws, you already know why impact-rated bits exist. This 90mm PZ2 impact driver bit is built from the ground up to handle the sudden rotational and downward forces that impact drivers generate — forces that destroy ordinary screwdriver bits surprisingly quickly. The longer 90mm length gives you better access in awkward positions without needing an extension, which on its own saves time and frustration on most jobs.

The steel composition here has been developed specifically with impact driving in mind. It is not simply a harder bit — that approach tends to make bits brittle and prone to snapping. Instead, the hardness is deliberately reduced at the body of the bit, allowing it to absorb and dissipate the shock loads rather than fighting them. Think of it like a suspension system. The tip retains the hardness needed to hold in the screw head, while the shaft flexes just enough to take the hit. A dedicated torsion zone sits between tip and shank to manage exactly that transition.

What Makes This PZ2 Impact Bit Different

The heat treatment process has been developed to extend working life well beyond what you would expect from a budget bit. Heat treatment affects the grain structure of the steel at a microscopic level, and getting it right is the difference between a bit that lasts a day and one that lasts a month of continuous use. The black phosphate finish adds corrosion resistance, which matters if your bits live in a belt pouch or toolbox rather than a dry cabinet — and let us be honest, most do.

At 90mm, this bit is long enough to keep your drill clear of obstructions when driving into tight spaces, decking boards, carcass work, framing — anywhere that a standard 25mm bit leaves your knuckles too close to the work surface. It runs in any standard impact driver with a quarter-inch hex chuck, so there is no special tooling required.

Corrosion Resistance on Site

The black phosphate coating is not just cosmetic. It provides a meaningful level of protection against surface rust, particularly useful when working in damp or outdoor environments. It will not make the bit waterproof, but it does slow down the inevitable.

Available individually or in packs. If you get through bits regularly, buying in quantity makes obvious sense.