Carolus 1/2" Drive Bi-Hex Socket 20mm – DIN 3120

The Carolus 1/2" drive bi-hexagonal socket is a precision deep socket with a 20mm opening, manufactured to DIN 3120 standards with ISO 1174 ball retention groove for secure seating. The bi-hex profile distributes load evenly across fastener corners, reducing rounding and cam-out during high-torque applications. Ideal for mechanics, automotive technicians, and workshop professionals working with metric fasteners on heavy-duty equipment and vehicles.