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One drive system with five choices of engagement.

The benefits of the PHILLIPS SQUARE-DRIV® Drive System are significant. In larger, higher torque applications where stick-fit is crucial, PHILLIPS SQUARE-DRIV is especially useful. Fasteners can be better controlled at higher torque levels for optimum clamp loads. This reduces driver bit wear and eliminates driver cam-out which can cause recess reaming, component damage/rework and operator injury.


0-1 thru 3-3


M3 (#4) thru M6 (¼ in)



Unique combination drive system with ACR technology

  • Significantly enhances driving torque capability

Only three driver bit sizes required to cover the most popular size-range

  • Extends driver bit life

Higher torque driving capability for thread-forming screw applications

  • Facilitates one-hand fastener installation

Non-magnetic fastener-to-bit stick-fit

  • Aids in disassembly for more effective maintenance and service

Distinctive head marking that easily identifies a PHILLIPS SQUARE-DRIV Drive System

  • Virtually eliminates dropped screws in assembly area and on factory floor

A choice of five drivers

In field service operations, versatility is the mark of the Phillips Square-Driv® combination drive system. A single drive system allows the use of five different drivers.



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