Insert Installation Tool, Compatible External Thread Size 1/4 In. -28, Compatible Insert Diameter Not Applicable, Compatible Insert Length Not Applicable, Compatible Insert Material Not Applicable, Compatible Insert Style Tanged, Compatible Insert Type Helical Inserts, Compatible Internal Thread Size 1/4 In. -28, Compatible Thread Direction Right Hand, Compatible Thread Type Fine, Material Steel, Overall Length 4 1/4 in, System of Measurement Inch, Tool Type Prewinder Type AM, Includes -. This item has been restricted from sale in the following state (s): []