Sealey brake calliper thread repair kit m12 x 1 5mm sealey vs0463 quick and effective method of replacing brake caliper threads using m12 x 1 5mm inserts stepped drill allows oversizing of the hole allowing insert to be fitted features one alignment plate for precision drilling for new insert kit includes m12 tap step drill insert locator two washers with centre roller bearing and ten replacement inserts in storage case sealey vs0463 brake caliper thread repair kit m12 x 1 5mm