Oil plug thread restoration kit. The kit includes oil plugs, copper washers and thread cutters. The kit cuts a new thread into the damaged oil plug thread hole. The hole can be closed with the new oil plug included in the kit. The oil plugs have a thread of M13. M15. M17. M20. Suitable for car brands: Audi. BMW. Ford. Fiat. Opel. Peugeot. Nissan. Porsche. Škoda. Toyota. Volvo. VW. Saab. Seat. Honda. Mazda. Hyundai. KIA etc.