21 mm Pro Plug Socket

Features:

• Fits 21 mm and 13/16" spark plugs
• Ultra-strong tool steel construction
• Slim skeleton profile
• Use with a 3/8" 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