Teng Tools impact sockets are specifically designed for use with power tools and air tools. Manufactured in chrome molybdenum in accordance with GGG-W-6608, these sockets ensure the highest quality. These regular 6-point metric impact sockets have a 3/4 in square drive, and have a locking pin and retaining ring facility. The TEN940541 Impact Socket has the following specifications: Size: 41mm. Length: 58mm. TEN940541