Features and Benefits:
- Grey Pneumatic impact sockets are designed for professional tool users
 - They are engineered specifically for use with impact tools
 - Heat treated for strength and durability
 - Tested to the highest specifications to deliver outstanding performance
 - Made from high quality chrome-molybdenum steel
 
3/8 in.; Drive x 5/16 in.; Square Female Pipe Plug 4-Point Impact Socket. Our impact sockets grip the fastener across a broader contact area, reducing chance of rounding off fasteners. They also allow up to 20% more torque to be applied than on other impact sockets. The shift in pressure allows us to reduce the socket wall thickness, increasing access to tight areas.