*  Special thin wall design for water-cooled 4-strokes with 5/8 in. spark plugs     * Unique 2-step extension - Swivel or fixed     * 3/8 in. drive swivel extension can be turned with a Phillips screwdriver, 3/8 in. ratchet or driver, or 14mm wrench or socket     * Spark plug socket can be turned with 3/8 in. driver or 19mm wrench or socket     * Spark plug socket can be used with a screwdriver to hold the front 19mm hex axles on late-model 4-stroke motorcycles     * For use on models like the KTM 4-strokes, DR-Z400, CRF450R, YZ/WR400/426F, YZ250F, KLX300, DVX400 and others with 5/8 in. spark plugs