Fits 21 mm and 13/16in. spark plugs

Ultra-strong tool steel construction

Slim skeleton profile

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

Innovative internal plug retention system

Protective black oxide coating

Easy to read laser etched markings

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

Light weight

Patent pending