Thread Repair Kit Insert Types Included Helical Inserts Compatible Material Metal Drill Bit Sizes Included 11/64 in Finish Plain Helical Insert Type Free-Running Insert Length 4 mm 6 mm 8 mm 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 Metric Tang Style Tanged Tap Sizes Included M4-0.70 Thread Direction Right Hand Thread Size M4-0.70