USAG 3/8" Drive Long Spark Plug Socket - for 16mm (5/8")
plugs. Knurled end
for fast pre-tightening. Rubber grips to hold plugs in place.
Extra long for recessed plugs - 9.8" (250mm). OD is approx 21.5mm .
Note - this socket has a
matte/honed finish. The shorter socket has a chrome finish.
