MOTORCYCLE SCOOTER VALVE TAPPET ADJUSTMENT TOOL, ENGINE VALVE SCREW REPAIR WRENCH ADJUSTING SPANNER HEXAGONAL HOLE TOOL Suitable for : adjusting motorcycle engine valve screw. Compact and easy to carry. Loosen all screws, nuts, hooks and other fasteners. Easily tighten or remove valve cores on bicycles, cars, and any other air filled tires. It can be used in the automotive, household, manufacturing, construction and other industries.