1/2 Sq. Dr. Socket 13mm Surface Length 77mm 7mm Universal Spark Plug Socket with

Universal Spark Plug Socket with Spring Clip Length: 315mm Output Size: 18mm Opening: 6 Point

Input Drive Size: 1/2" Drive Shape: Square Length: 200mm Type: Extension Socket Output Size: 18mm Output Shape: 6pt

Drive Shape: Square Type: 12 Point Metric Socket Set Includes: Don't need the entire set

and a 2137 bit holder for adapting 1/4" square drive to 1/4" hex

1/2 Sq. Dr. Socket 13mm Surface Length 77mm 7mm Universal Spark Plug Socket withSurface 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. Input