- Fully radiused machined end protects the piston during spark plug handling, reducing the risk of damage and extending engine life - Easy to use: remove the spark plug, screw on the tool, and secure a precise fit to minimize cross-threading and slips - Multifunctional tool for clutch service, flywheel nut removal, and routine maintenance of weed trimmers, blowers, and other small engines - Durable metal construction delivers lasting performance in both shop and field environments - Compatible with standard spark plugs used in most small engines, including lawnmowers, trimmers, and leaf blowers - Use scenarios - Seasonal maintenance on a weed trimmer: quickly remove and reinstall the spark plug with piston protection - Flywheel or clutch work on small engines: safely loosen or tighten nuts - Field maintenance on outdoor power equipment: perform spark plug work and basic service on trimmers and blowers