Viking Drill and Tool 50130 Hi-Carbon Steel Machine Screw & Fractional NC, HEX Die Tap & Die Set (40 Piece) 40 pc. Set Hi-Carbon Steel Machine Screw and Fractional NC, FC with Hexagon Dies Includes: 4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/4-20, 1/4-28, 5/16-18, 3/8-16, 3/8-24 taps & dies Includes: Taps and dies, T-handle, T-handle wrench, Tap & reamer wrench, adjustable die stock, screw driver, screw pitch gauge Ideal for routine maintenance, repair work & rethreading 40 piece Hi-carbon steel machine screw & fractional NC, FC Hexagon die tap & die set