DIN 7428/ISO 3317, with outside hexagon for power operated IMPACT sockets DIN 3129/ISO 2725-2 with inside square DIN 3121/ISO 1174-2, Large collar diameter for better support of IMPACT sockets (3216/1, 3316/1), Square drive with spring loaded locking pin, Chrome Alloy Steel, gunmetal finish.
- Split point of 135 ° rectified; - Industrial grade rectified groove; - High quality steel body with titanium nitride coating (TiN); - Speed and power; - Less heat.