Professional quality M12 x 1.5mm brake caliper thread repair kit. Designed for rethreading brake caliper bolt holes using M12 x 1.5mm inserts. Kit includes one alignment plate for precision drilling for new insert. Provides a quick and effective method of replacing brake caliper threads. A tough all round general purpose tool no workshop / garage should be without. Stepped drill allows you to oversize the hole to allow the insert to be fitted. Supplied complete as shown. Brand new. Please follow all safety instructions when using this product. Kit Includes: M12 x 1.5mm tap step drill insert locator. 1 x New insert alignment plate 2 x Washers with centre roller bearing. 10 x Replacement inserts.