Thread Repair Kit Insert Types Included Helical Inserts Compatible Material Metal Finish Plain Helical Insert Type Free-Running Insert Length 21/32 in Insert Material Stainless Steel Number of Inserts 6 Number of Pieces 4 Number of Sizes 1 System of Measurement Inch Thread Direction Left Hand Thread Size 7/16 In.-20 Thread Type Fine Manufacturer Location Made in USA Includes Insert Tap Tool