Heavy-duty impact socket engineered for demanding applications. The 3/4" drive size delivers maximum torque transfer with pneumatic and electric impact wrenches. Forged steel construction withstands repeated strikes without cracking or deforming. 42mm hex opening fits standard fasteners precisely. Chrome-molybdenum alloy provides superior strength-to-weight ratio. Ideal for automotive repair, machinery maintenance, and industrial assembly work. STANLEY quality ensures reliability on every job.