20-Piece Metric Tap and Die Set – M3 to M12 with Tap and Die Wrenches

This 20-piece metric tap and die set provides a complete hand-threading solution for cutting and repairing internal and external threads in the M3 to M12 range. The set includes nine hand taps and nine matching dies, covering the most commonly used metric sizes: M3×0.5, M4×0.7, M5×0.8, M6×1.0, M7×1.0, M8×1.25, M9×1.25, M10×1.5, and M12×1.75. A tap wrench and a die wrench are supplied so that both tapping and threading operations can be performed without additional tooling. The taps are designed for cutting internal threads in nuts, bosses, and drilled holes, while the dies cut external threads on rods, pipes, and cylindrical workpieces. This metric threading set is suitable for use on alloy steel, mild steel, aluminum, brass, copper, wood, and plastics, and it is widely used in repair work, CNC preparation, automotive maintenance, and general mechanical fabrication. The set is compact and organised for bench use, making it a practical choice for workshops, maintenance departments, and DIY threading tasks where a defined range of metric threads is required.

1. Cutting and repairing internal metric threads with hand taps.
2. Cutting and restoring external metric threads with dies.
3. General maintenance and repair of bolted connections.
4. Preparation and finishing work in CNC and lathe operations.
5. Automotive, machinery, and equipment thread restoration.
6. Workshop, maintenance, and DIY threading tasks across M3–M12 sizes.

1. Set type: metric tap and die set.
2. Number of pieces: 20.
3. Thread range: M3 to M12.
4. Number of taps: 9 (hand taps).
5. Number of dies: 9 (round dies).
6. Tap sizes and pitches: M3×0.5, M4×0.7, M5×0.8, M6×1.0, M7×1.0, M8×1.25, M9×1.25, M10×1.5, M12×1.75.
7. Die sizes and pitches: M3×0.5, M4×0.7, M5×0.8, M6×1.0, M7×1.0, M8×1.25, M9×1.25, M10×1.5, M12×1.75.
8. Included wrench: 1 × tap wrench, 1 × die wrench.
9. Thread standard: metric coarse.
10. Workpiece materials (typical): alloy steel, mild steel, aluminum, brass, copper, wood, plastics.