Grey Pneumatic impact sockets are designed for professional tool users. 3/8 in.; Drive x 3/8 in.; Square Female Pipe Plug 4-Point Impact Socket. They also allow up to 20% more torque to be applied than on other impact sockets.
Grey Pneumatic Assorted Drive 12 Piece Int. Star Impact Driver Set
Grey Pneumatic 1" Drive x 7" Extension with Locking Pin
Grey Pneumatic 1" Drive x 1-15/16" Standard Socket
Grey Pneumatic 1" Drive x 3/4" Deep Socket
Grey Pneumatic 1" Drive x 13/16" Square Heavy Duty - 4 Point Socket
Grey Pneumatic 1" Drive x 1-3/8" Standard Socket