Proto® ProtoGrip High Strength Magnetic Impact Sockets
Allows room for more magnet material, helping increase total magnetic strength|Designed to easily pick up heavy fasteners and hold them tightly during use|Impact sockets with high-impact strength are used in automated and hand impact socket application|ProtoGrip magnetic sockets require no bushings to hold the magnet in place|The sockets use high strength magnets made from a rare earth magnet alloy/nylon blend