Thread Repair Kit, Insert Types Included Helical Inserts, Compatible Material Metal, Drill Bit Sizes Included 8.3 mm, Finish Plain, Helical Insert Type Free-Running, Insert Length 15/32 in, Insert Material Stainless Steel, Material Grade/Class 18-8, Maximum Hole Diameter 0.2524 in, Number of Inserts 20, Number of Pieces 24, Number of Sizes 1, System of Measurement Inch, Tang Style Tanged, Tap Sizes Included 5/16 In. -18, Thread Direction Right Hand, Thread Size 5/16 In. -18, Thread Type Coarse. This item has been restricted from sale in the following state (s): []