Thread Repair Kit Insert Types Included Helical Inserts Compatible Material Metal Drill Bit Sizes Included 11.5 mm Finish Plain Helical Insert Type Free-Running Insert Length 21/32 in Insert Material Stainless Steel Material Grade/Class 18-8 Maximum Hole Diameter 0.3834 in Number of Inserts 10 Number of Pieces 14 Number of Sizes 1 System of Measurement Inch Tang Style Tanged Tap Sizes Included 7/16 In.-20 Thread Direction Right Hand Thread Size 7/16 In.-20 Thread Type Fine