Ko-ken Usa 4310m-21 1/2 Square Drive Socket 21 Mm Surface Length 77 Mm

Features and Benefits:

• Surface drive deep socket type
• Sockets showing cracked walls battered points or other marks of wear are to be replaced
• These sockets are ideal for use on polished nuts, aluminum nuts and nuts with worn out points
• Surface drive sockets are designed to retain contact with the flat sides of the nut in order to reduce nut wear



Ko-ken 4310M-21 1/2 Sq. Dr. Socket 21mm Surface Length 77mmSurface Drive sockets are designed to retain contact with flat sides of nut to transmit high torque and reduce nut wear. Compared to Flat Drive, Surface Drive utilizes contact on the larger area closer to the center of the bolt or nut. Surface Drive is useful for painted face nuts or any bolt or nut made of soft material, with less risk of damaging the faces. Surface Drive can also be useful for a bolt or nut that has been damaged or deformed.Product Specifications:Drive Shape: SquareInput Drive Size: 1/2"Length: 77mmOpening: SurfaceOutput Size: 21mmType: Surface Drive Deep SocketProduct Dimension (Refer Line Drawing Image):D1 Size: 29mmD2 Size: 27mmH1 Size: 23mmH2 Size: 58mmL Size: 77mm