• Used to adjust the intake and exhaust valve rocker arms on Mercury Marine® four-stroke outboard motors
• Motor sizes: 10 hp, 15 hp, 20 hp, 25 hp and 30 hp
• Manufactured from special alloy steel
• Precision forged and heat treated for optimum strength and durability
• Nickel-chrome plating helps protect against corrosion and makes it easy to wipe clean
• Used to adjust the intake and exhaust valve rocker arms on Mercury® Marine® 4-stroke outboard motors. Motor sizes: 10,15, 20, 25, and 30 hp.