The GearWrench Pinless Universal Impact Sockets feature a patented four-lug ball-in-socket design for increased durability, speed and strength. The design provides smoother operation for longer life and allows a 30-degree off-center operating angle for superior access in tight spots. The four-lug ball-in-socket design’s 360-degree movement gives technicians a greater range of motion and the socket wall dimensions are optimized to provide strength while retaining access to restricted fasteners. The Pinless Universal Impact Sockets incorporate the brand’s Surface Drive Technology. The Pinless Universal Impact Socket Sets come in the following ranges: 3/8” Drive 7-pc SAE Set, 3/8” to 3/4” (No. 84922); 3/8” Drive 10-pc Metric Set, 10mm to 19mm (No. 84921); 1/2” Drive 9-pc SAE Set, 1/2" to 1” (No. 84937); and 1/2" Drive 10-pc Metric Set, 13mm to 24mm (No. 84936).