Insert Installation Tool, Compatible External Thread Size Not Applicable, Compatible Insert Diameter 8 mm, Compatible Insert Length 8 mm, 12 mm, 16 mm, Compatible Insert Material 18-8 Stainless Steel, Compatible Insert Style Tanged, Compatible Insert Type Helical Inserts, Compatible Internal Thread Size M8, Compatible Thread Direction Right Hand, Compatible Thread Type Coarse, Material Steel, Overall Length 8 in, System of Measurement Metric, Tool Type Prewinder Type II, Power Source Manual