1/2 Sq. Dr. Socket 21mm Surface Length 38mm 25mm 14mm 3300CZ Spark Plug Sockets:

14mm 3300CZ Spark Plug Sockets: 14

Input Drive Size: 3/8" Drive Shape: Square Length: 32mm Type: 6 Point Socket Output Size: 11/16" Opening: 6pt

D1 Size: 12mm D2 Size: 19mm H Size: 2

Input Drive Size: 1/2" Drive Shape: Square Length: 77mm Type: 12 Point Deep Socket Output Size: 13/16" Opening: 12pt

2mm H1 Size: 10

1/2 Sq. Dr. Socket 21mm Surface Length 38mm 25mm 14mm 3300CZ Spark Plug Sockets:Surface 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. Drive