GRE1021MD by GREY PNEUMATIC - 3/8" Drive x 21mm Deep

Features and Benefits:Deep length 6-point impact socket; Made from high quality chrome-molybdenum steel; Heat treated for strength and durability; Size markings are hard stamped into the socket for easy identification; Black oxide coated for resistance against rust and corrosion3/8 in.; Drive x 21mm Deep Length 6-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.