Pozidriv looks like Phillips and is not, and using one on the other is the most common way a screw head is destroyed. This is the complete list of 3 Pozidriv bit sockets in 1/4 inch drive, with part numbers.
Telling Pozidriv from Phillips
Look at the screw head, not the driver. A Pozidriv screw has four shallow lines radiating from the recess at forty-five degrees to the main cross — small, easy to miss under paint, and completely diagnostic. A Phillips head has nothing between its four arms. The drivers differ in the same place: the Pozidriv tip carries four extra ribs that engage those lines, and the flanks of its blades are parallel rather than tapered.
Why the mismatch does damage
A Phillips bit will enter a Pozidriv recess, and it will feel like it fits. What it actually does is contact the screw on the very tips of its four blades, so the entire torque passes through four small points of hardened steel bearing on unsupported metal. The recess collapses from the inside outward, usually after the screw is too far in to reach with pliers. The reverse — a Pozidriv bit in a Phillips screw — sits proud and cams out early, which is annoying rather than destructive.
All 3 sizes
| Pozidriv size | Teng part number | EAN |
|---|---|---|
| PZ1 | M141601-C | 5020385131903 |
| PZ2 | M141602-C | 5020385131910 |
| PZ3 | M141603-C | 5020385131927 |
Where this list comes from
Every row is read from the live Teng Tools USA catalogue on the day this page was generated — product record, part number and size taken from the record itself, never transcribed from a printed catalogue or inferred from a pattern. Pozidriv sizes use the PZ designation as marked on the tool. A size that has been discontinued disappears from this list rather than lingering as a part number you cannot order, which is the failure mode of every static spec sheet.
When a bit socket beats a screwdriver
A screwdriver applies torque and axial pressure through one hand. A bit socket on a ratchet separates the two: the ratchet delivers torque while your other hand pushes the socket squarely into the recess. On a large, seized or painted-in screw that separation is what keeps the bit engaged, and Pozidriv rewards it more than most because the recess relies on full engagement to spread the load down the flanks of the blades rather than onto their tips.
Bit sockets are in sockets and accessories; the bit ranges are in bits and drivers.