Cr-V 3/8" Dr. 6PT 21mm Thin Wall Spark Plug Socket with Magnetic & Hex Bolster

Cr-V 3/8" Dr 6PT 28mm OD Thin Wall Spark Plug Socket w Magnetic 21mm. Working size: 21mm. With strong magnetic ring to clip the spark plug. Used for Removing the 6-point spark plugs from certain, compatible vehicles.