Sealey 1/2" Drive Deep Hexagon Impact Socket Metric 1/2" 21mm

This 21mm deep impact socket with 1/2" drive is perfect for wheel nut applications and heavy-duty mechanical work requiring extended reach. The 21mm dimension is a common wheel nut size on many commercial vehicles and larger cars. Chrome vanadium drop-forged construction with WallDrive® technology ensures reliable performance in demanding professional environments. Features and Benefits: • 21mm hexagon size ideal for wheel nuts and heavy-duty work • Deep socket design for recessed fast