It is used to tap the damaged thread and slightly enlarge the diameter of the oil drain hole, then install a new oil drain plug and washer. Ideal for repairing the crankcase oil drain, gearbox and differential drain plug thread. M12x14mm magnetic engine oil drain screw for off-road motorcycle Strong magnetic slag absorption screw < p>Packing list: 6 Off-Road Motorcycle Oil Screws We only sell, not other items in the picture. Due to the difference between different monitors, pictures may not reflect the actual color of the product. Due to manual measurement, please allow minor dimensional errors.