Thread Repair Kit, Insert Types Included Helical Inserts, Compatible Material Metal, Drill Bit Sizes Included 12.4 mm, Finish Plain, Helical Insert Type Free-Running, Insert Length 18 mm, Insert Material Stainless Steel, Material Grade/Class 18-8, Maximum Hole Diameter 10.376 mm, Number of Inserts 10, Number of Pieces 14, Number of Sizes 1, System of Measurement Metric, Tang Style Tanged, Tap Sizes Included M12-1.50, Thread Direction Right Hand, Thread Size M12-1.50, Thread Type Fine