IRWIN Tools 1813817 Performance Threading System Deluxe Tap, Die and Drill Bit Set, 116-Piece Tap and die set includes: Pipe: 1/8" - 27 NPT and 1/8" - 28 BSP Spiral-flute screw extractor: EX-1, EX-2, EX-3, EX-4 and EX-5 Machine screw: 4 - 40 NC, 6 - 32 NC, 8 - 32 NC, 10 - 24 NC, 10 - 32 NF and 12 - 24 NC Fractional: 1/4" - 20 NC, 1/4" - 28 NF, 5/16" - 18 NC, 5/16" - 24 NF, 3/8" - 16 NC, 3/8" - 24 NF, 7/16" - 14 NC, 7/16" - 20 NF, 1/2" - 13 NC and 1/2" - 20 NF Metric: 3mm - 0.5, 4mm - 0.7, 4mm - 0.75, 5mm - 0.8, 5mm - 0.9, 6mm - 1.0, 7mm - 1.0, 8mm - 1.0, 8mm - 1.25, 9mm - 1.0, 9mm - 1.25, 10mm - 1.25, 10mm - 1.5, 11mm - 1.5, 12mm - 1.25 and 12mm - 1.75 Tap and die set includes: Pipe: 1/8" - 27 NPT and 1/8" - 28 BSP Spiral-flute screw extractor: EX-1, EX-2, EX-3, EX-4 and EX-5 Machine screw: 4 - 40 NC, 6 - 32 NC, 8 - 32 NC, 10 - 24 NC, 10 - 32 NF and 12 - 24 NC Fractional: 1/4" - 20 NC, 1/4" - 28 NF, 5/16" - 18 NC, 5/16" - 24 NF, 3/8" - 16 NC, 3/8" - 24 NF, 7/16" - 14 NC, 7/16" - 20 NF, 1/2" - 13 NC and 1/2" - 20 NF Metric: 3mm - 0.5, 4mm - 0.7, 4mm - 0.75, 5mm - 0.8, 5mm - 0.9, 6mm - 1.0, 7mm - 1.0, 8mm - 1.0, 8mm - 1.25, 9mm - 1.0, 9mm - 1.25, 10mm - 1.25, 10mm - 1.5, 11mm - 1.5, 12mm - 1.25 and 12mm - 1.75