RUKO SMU-DIN382-M3x0.5mm-6k Round Die, HSS, Metric M3 x 0.5 mm, 6g, 20 mm OD

This RUKO round die is engineered for cutting external metric threads with precision, featuring a fine pitch of 0.5 mm on a 3 mm diameter—ideal for small, high-accuracy fasteners. Unlike generic dies, it carries the DIN 382 standard and a 6g tolerance class for consistent, gauge-accurate threads.

Highlights

• Metric M3 x 0.5 mm fine thread, right-hand, 6g tolerance
• High-speed steel (HSS) for durability and clean cuts
• DIN 382 compliant, 20 mm outer diameter, 7 mm thick
• Three flutes for efficient chip evacuation
• Bright finish; suitable for hand or machine use

In daily use

Whether you're chasing threads on a lathe or cutting new ones by hand, this die works smoothly on unalloyed and low-alloyed steels as well as non-ferrous metals. Its 3-flute design reduces clogging, and the 20 mm OD fits standard die stocks and holders.

Full specifications

• Product type: Round die
• Standard: DIN 382
• Thread type: Metric
• Nominal thread diameter: 3 mm
• Thread pitch: 0.5 mm
• Thread direction: Right-hand
• Tolerance class: 6g
• Material: High-speed steel (HSS)
• Application: External thread cutting
• Die outer diameter: 20 mm
• Die thickness: 7 mm
• Number of flutes: 3
• Surface finish: Bright
• Suitable for materials: Unalloyed and low-alloyed steels, non-ferrous metals
• Tool use: Hand and machine

Final note

A reliable DIN 382 round die for fine metric threads, built from HSS for long service life in both hand and machine applications.