Fractional Tap and Die Set (17-Piece)The DEWALT DW1451 17 piece Fractional Tap and Small Hexagon Die Set is a multi purpose tap and die set. This set is ideal for repairing and creating a wide range of internal and external threads. Made from high carbon steel, the taps and dies are machined for precise threading and the black oxide drill bits are designed for long life. California residents see Prop 65 WARNINGS Includes 1 of each of the following: 6 32 tap, 8 32 tap, 10 24 tap, 10 32