Ultrasonic Insert, 1/4"-28, 1/2 in L, 0.363 in Insert Dia., 0.321 in Tapered End Dia., Brass, 50 PK, EnjoyTool Select, Mfr#: DV-428-TH-PK50

Heat-Set Insert, Insert Type Heat-Set Insert, System of Measurement Inch, Insert Diameter 3/8 in, Overall Length 1/2 in, Thread Size 1/4 In.-28, Thread Direction Right Hand, Thread Type Fine, Material Brass, Shank Type Tapered, Tapered End Diameter 0.321 in, Flange Style Flush, Number of Vanes 2, Compatible Material Thermoplastic, Drill Bit Size 0.321 in, Minimum Material Thickness 3/16 in, Maximum Hole Diameter 0.363 in, Features Pull-Out Resistance, Finish Plain