Proto J6910HF 1/4 Drive 5/16 ProtoGrip™ High Strength Magnetic Impact Socket
•ProtoGrip™ Magnetic Sockets use high strength magnets made from a rare earth magnet alloy/nylon blend. •ProtoGrip™ Magnetic Sockets require no bushings to hold the magnet in place. Allows room for more magnet material, helping increase total magnetic strength. •Designed to easily pick up heavy fasteners and hold them tightly during use. •Strong magnetic hold helps increase efficiency when installing fasteners in awkward or hard-to-reach locations. •Impact sockets with high impact strength are used in automated and hand impact socket applications. •Size stamped on tool for easy identification.