Carolus 1/4" Square Drive Socket – Phillips 3 (PH3)

The Carolus 1/4" square drive socket is designed to hold Phillips 3 (PH3) screwdriver bits securely during fastening operations. It features a ball retention groove that keeps the bit firmly seated, reducing slippage and improving accuracy on delicate or precision work. Ideal for automotive technicians, panel builders, and electricians working with standardised bit systems.