Grey Pneumatic 1300T 1/2" Drive 8 Piece Internal Star Impact Driver Set

Features: T30, T40, T45, T47, T50, T55, T60 and T70 1/2" Dirve External TORX sizes in a molded case. Transfers the pressure from the thinnest part of the socket wall toward the thicker section, resulting in increased strength. Allows up to 20% more torque to be applied than on standard hex impact sockets. The shift in pressure allows less socket wall thickness, increasing access to tight areas. Sockets grip the fastener across a broader contact area, reducing the chance of rounding off fasteners.