M3 x 0.5mm Machine Tap DIN 371B HSS Form B Straight Flute 6H Through-Hole Chamfer Right-Hand Cut - Ruko GmbH

Combining HSS hardness, a peeling chamfer for clean through-thread starts and ISO 6H tolerance results in consistent, machine-ready threads; order the tool directly via Metav Werkzeuge or consult their specialists for precise application support.

Machine tap DIN 371B M3 x 0.5 HSS 6H — RUKO

The machine tap M3 x 0.5 provides fast, repeatable metric ISO thread cutting for through holes in unalloyed and low‑alloy steels, malleable cast iron and non‑ferrous metals

• HSS material for high wear resistance
• Straight flute with relief‑ground flanks
• Peeling chamfer for reliable through threads
• Suitable for steels up to 800 N/mm² tensile strength

Consistent thread tolerances for industrial production

The tool is manufactured to deliver metric ISO threads in accordance with recognised standards, offering an ISO 6H tolerance class that matches common assembly and fastening requirements. Made from HSS, the tap maintains cutting edge geometry under continuous use and provides reliable dimensional results, reducing rework and ensuring interchangeability of threaded components in series production.

Cutting geometry that reduces torque and improves chips evacuation

A straight flute design combined with relief‑ground flanks and the specialised peeling chamfer reduces cutting forces at thread entry and promotes efficient chip formation for through holes. This geometry lowers machine load during tapping cycles and helps prevent chip packing in the flute, which in turn lengthens tool life and stabilises process times on automatic tapping heads and machining centres.

Practical integration and handling in workshop environments

The thread cutter features a compact shank Ø 3.5 mm that fits standard collets and holders for machine tapping applications. Right‑hand cutting orientation and Form B straight‑flute construction make the tool suitable for a wide range of production set‑ups where dependable thread starts and consistent pitch quality are required. Operators benefit from fewer interruptions and a predictable thread quality, supporting tight production schedules.

Standards conformity and material applications explained

Produced to DIN 371B and compatible with DIN 13 Sheet 1, the tap is intended for through threads and is specified for use in unalloyed and low‑alloy steels up to 800 N/mm² tensile strength, temper cast iron and a variety of non‑ferrous metals. The designation indicates the geometry and tolerance regime applied during manufacture, simplifying quality control and documentation when the threading tool is integrated into procurement or inspection workflows.

For workshop and production enquiries about the RUKO M3 x 0.5 machine tap, rely on Metav Werkzeuge for expert advice and secure supply — contact their consultants at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability for specific materials and machines

Technical Data

• Article number: 4000601888NW
• Product name: Maschinengewindebohrer DIN 371B M3x0,5mm HSS 6H RUKO
• Manufacturer: Ruko GmbH Präzisionswerkzeuge
• Packaging unit: 1

Facts

• Thread size: M3 x 0.5
• Shank diameter: 3.5 mm
• Tolerance class: ISO 6H
• Suitable material tensile strength: up to 800 N/mm²
• Standard: DIN 371B; DIN 13 Sheet 1

Special features

• Material: HSS
• Form: B (straight flute)
• Flank treatment: relief‑ground flanks
• Entry geometry: peeling chamfer for through threads
• Cutting direction: right‑hand cutting
• Application: unalloyed and low‑alloy steels, temper cast iron, non‑ferrous metals

FAQ

What materials is this tap suitable for?
The RUKO machine tap is specified for unalloyed and low‑alloy steels up to 800 N/mm² tensile strength, temper cast iron and various non‑ferrous metals.

Is this tap intended for through holes or blind holes?
The tool features a peeling chamfer designed for reliable starts in through threads and is optimised for through‑hole tapping.

Which standards and tolerances does the tap meet?
Manufactured to DIN 371B geometry and aligned with DIN 13 Sheet 1, the tap is produced to ISO tolerance class 6H for consistent thread quality.

What is the shank diameter and compatibility with holders?
The shank diameter is 3.5 mm, suitable for standard collets and machine tapping holders commonly used in production environments.

Can this tap be used in automatic tapping heads?
Yes; the straight‑flute Form B geometry and right‑hand cut make the tap compatible with many machine tapping heads and machining centres for automated production.

Manufacturer/Responsible: Ruko GmbH Präzisionswerkzeuge, Robert-Bosch-Strasse 7, 71088 Holzgerlingen