SNAP ON TOOLS USA NEW SWR102 2-pc Oxygen Sensor Wrench Set 3/8" drive 7/8" Hex. • SWR1A Oxygen Sensor Wrench is designed for all oxygen sensors with a 7/8" hex. 2 pc Oxygen Sensor Wrench Set. • SWR2 is 3/8" drive, 7/8" hex size with 1/2" opening for easy access to oxygen sensors.
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