Irwin Hanson 117-Pc Machine Screw/Fractional/Metric Tap & Hex Die and Drill Bit Deluxe Sets Ideal for re-threading fasteners and fastener holes for auto and machinery repair.. Constructed of high carbon steel for durability.. Perfect set for the professional craftsman.. Contains 117 of the most commonly needed machine screw plug tap and hex die sizes, drill bits, spiral screw extractors, an adjustable handle tap wrench, 2-in-1 tap wrench, t-handle wrench, pitch gauges, and a plastic case.. Pack of 1