Carolus Socket 1/4" 3mm Square Drive Ball Retention

The Carolus Socket 1/4" with 3mm square drive features a ball retention groove to secure bits firmly in place during fastening operations. Manufactured to DIN 3120 and ISO 1174 standards, this socket delivers reliable performance for precision screwdriving and bit retention in automotive and trade applications. Ideal for mechanics, electricians, and tradespeople requiring professional-grade socket accessories.