Compact round die set for metric thread cutting and repair Key benefits One durable steel kit for cutting and restoring external metric threads, saving time on repairs and small production tasks. Multiple common metric sizes cover a wide range of bolts and studs, reducing the need to buy individual dies. Includes an M25 wrench for secure tightening and controlled cutting. What’s included Material: Steel Contains 8 round threading dies: M3*0.5, M4*0.7, M5*0.8, M6*1.0, M8*1.25, M10*1.5, M12*1.75 Wrench: M25 Set contents: 8 round threading dies + 1 wrench Performance and compatibility Function: External thread cutting and thread repair for metric threads listed above. Size coverage: M3 through M12 pitches as specified, covering common small to medium fasteners. Built from steel for reliable cutting life under normal workshop use; use cutting fluid and proper technique to maximize tool life. Practical use scenarios Workshop repair: Restore stripped bolt threads on machinery frames, housings, or assembled components without replacing parts. Maintenance and field service: Recut damaged threads on equipment and fixtures during on-site repairs. DIY and fabrication: Create or refine external threads on custom shafts, spacers, or prototype components. Simple usage tips Secure the workpiece, apply cutting oil, start the die square to the workpiece, and advance slowly with the M25 wrench, clearing chips regularly. Inspect thread fit with a matching nut to ensure correct engagement. This set provides a straightforward, steel die selection and an M25 wrench to handle common metric external threading tasks.