Thread Repair Kit Insert Types Included Helical Inserts Compatible Material Metal Drill Bit Sizes Included 9.9 mm Finish Plain Helical Insert Type Free-Running Insert Length 9/16 in Insert Material Stainless Steel Material Grade/Class 18-8 Number of Inserts 15 Number of Pieces 19 Number of Sizes 1 System of Measurement Inch Tang Style Tanged Tap Sizes Included 3/8 In.-16 Thread Direction Left Hand Thread Size 3/8 In.-16 Thread Type Coarse Insert Outside Diameter 0.47 in