Thread Repair Kit Insert Types Included Helical Inserts Compatible Material Metal Finish Plain Helical Insert Type Free-Running Insert Length 2 1/16 in Insert Material Stainless Steel Number of Inserts 6 Number of Pieces 4 Number of Sizes 1 System of Measurement Inch Thread Size 1 3/8 In.-8 Thread Type 8 UN Manufacturer Location Made in USA Includes Insert Tap Tool