Thread Repair Kit Insert Types Included Helical Inserts Compatible Material Metal Drill Bit Sizes Included 29/64 in Finish Plain Helical Insert Type Free-Running Insert Length 7/16 in 21/32 in 7/8 in Insert Material Stainless Steel Material Grade/Class 18-8 Maximum Hole Diameter Not Applicable Number of Inserts 18 Number of Pieces 22 Number of Sizes 3 System of Measurement Inch Tang Style Tanged Tap Sizes Included 7/16 In.-14 Thread Direction Right Hand Thread Size 7/16 In.-14