Tool Pro Plug Socket 21Mm 08-0653

Pro Spark Plug Socket

Use with a 3/8" square drive or 17 mm wrench

Innovative internal plug retention system

Easy to read laser etched markings

Ultra-strong tool steel construction

Protective black oxide coating

Slim skeleton profile

Lightweight

Lifetime limited warranty

Can be used as an axle holding tool on bikes with 17 mm or 24 mm internal hex axles. Through hole allows use of screwdriver or holding rod.