Widely used: Used for installing and disassembling hexagon-head screws and hexagon-head, charging drills, hand drills, electric batch and other tools High bites of hexagon socket: High hardness, wide application, longer service life and high bites Concave hexagon deepening: It is for the nut to be easily embedded in the sleeve, and the locking screw does not slip Hexagon handle slot design: Wide application ranges / stable clamping without slipping Deepening the sleeve without fear of long bolts: More deeply fit and unscrew the nut, which is and quick, Manufacturer: LiRRvb