Insert Installation Tool Compatible External Thread Size 1/4 In.-20 Compatible Insert Diameter 1/4 in Compatible Insert Length 1/4 in 3/8 in 1/2 in 5/8 in 3/4 in Compatible Insert Material 18-8 Stainless Steel Compatible Insert Style Tanged Compatible Insert Type Helical Inserts Compatible Internal Thread Size 1/4 In.-20 Compatible Thread Direction Right Hand Compatible Thread Type Coarse Material Plastic Overall Length 8 in System of Measurement Inch Tool Type Prewinder Tool