Specification Brand : Koken USA CompatibleFastenerDescription : 0.375 inch ItemName : Koken USA Nut Grip Socket 3/8"Sq.Dr. 15Mm ItemTypeKeyword : square-drive-sockets Manufacturer : Koken USA Material : Forged MeasurementSystem1 : metric MeasurementSystem2 : inch PartNumber : 3450M-15 ProductDescription : Ko-ken 3450M-15 | 3/8 Sq. Drive, Nut Grip Socket Nut Grip Our nut grip sockets are unique to Ko-ken and truly a revolutionary way of approaching this type of socket. Our fastener holds nuts and bolts in place without the use of magnets. Our system is built with coil springs and ball bearings on opposing flats. When a nut or bolt is in the socket the ball bearing pushes out on the springs holding the nut/bolt in place. Our nut grip sockets can completely change a mechanics' work ethic. If you lose a nut or bolt inside an engine a lot of time you must take the entire engine apart to find the bolt. With nut grip sockets that dilemma is completely eradicated. Interested in buying our tools? Visit the Where to Buy section of our website. ProductSiteLaunchDate : 2019-07-11T20:57:00.089Z Size : One Size UnitCount : 1 UnspscCode : 27111700