6mm Machine Tap DIN 371B M6x1 HSS Form B Straight Flute ISO2 6H Right-Hand Shank 6mm - Ruko GmbH

High-precision thread results and reliable chip control from a combination of HSS construction, ground flanks and a chamfered lead for through threads; order the tap directly via Metav Werkzeuge or ask the consultants for further specification support.

RUKO machine tap DIN 371B M6 x 1 HSS 6H — straight flutes, ground flanks

A RUKO machine tap DIN 371B M6 x 1 engineered for efficient production of metric ISO threads in through-hole applications, suitable for unalloyed and low-alloy steels.

• HSS, Form B with straight flutes
• Ground flanks for accurate thread profile
• Metric ISO M6 x 1, tolerance 6H
• Chamfered lead optimised for through threads

Consistent, accurate thread production for series work

The use of HSS and Form B geometry delivers a dependable balance between toughness and wear resistance, which supports continuous production without frequent tool changes. The straight flutes provide controlled chip formation, while the ground flanks ensure a precise thread profile in line with DIN 13 and the 6H tolerance class. This combination reduces rework and scrap rates by producing repeatable, ISO-compliant threads, making the tool particularly suitable for machine-based threading operations in busy workshops and small production lines.

Versatile material compatibility reduces tooling variety

Designed for a wide range of materials, the tap is suitable for unalloyed and low-alloy steels up to 800 N/mm², malleable cast iron and non‑ferrous metals, which increases process flexibility and lowers inventory needs. The nominal M6 x 1 specification matches common assembly standards, allowing consolidated toolsets across different jobs. The shank Ø 6 mm and robust HSS substrate mean the tool performs reliably under normal machine feed and speed conditions, thereby cutting setup complexity in mixed-material production environments.

Built for efficient machine threading and straightforward handling

The tap features a chamfered lead optimised for through threads, enabling a smooth entry and reducing starting torque for stable thread creation. With right-hand cutting and a standard shank diameter, the tool integrates easily into automatic tapping cycles and common clamping systems. For best results, use appropriate cutting fluid and recommended spindle speeds for the material being machined; this prolongs service life and maintains thread quality. The straightforward geometry also simplifies regrinding and inspection procedures, supporting predictable maintenance intervals in a production context.

For high-precision, industrial tapping with RUKO HSS machine taps, contact Metav Werkzeuge in Emmerich for ordering and technical advice at info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: 4000601891NW
• Product designation: Machine tap DIN 371B M6 x 1 HSS 6H RUKO
• Manufacturer: Ruko GmbH Präzisionswerkzeuge
• Packaging unit: 1

Numbers / Core technical data

• Thread size: M6 x 1
• Tolerance field: ISO2 (6H)
• Shank diameter: 6 mm
• Suitable tensile strength: up to 800 N/mm²
• Standard: DIN 13 Sheet 1

Special features / Versions

• Material: HSS
• Form: Form B, straight flutes
• Flanks: relief-ground (ground flanks)
• Lead: chamfered lead for through threads (Schälanschnitt)
• Cutting direction: right-hand cutting
• Application: unalloyed and low-alloy steels, malleable cast iron, non-ferrous metals

FAQ

What materials can be machined with this machine tap?
The RUKO machine tap DIN 371B M6 x 1 is suitable for unalloyed and low-alloy steels up to 800 N/mm², malleable cast iron and non‑ferrous metals.

Is this tap intended for through or blind holes?
The tool is supplied with a chamfered lead optimised specifically for through threads, making it ideal for through-hole tapping.

What tolerance and thread quality does the tap produce?
This machine tap produces metric ISO threads to ISO2 (6H) tolerance in accordance with DIN 13, suitable for standard industrial assembly requirements.

What shank size and cutting direction are specified?
Shank diameter is 6 mm with right‑hand cutting, compatible with standard machine tap holders and spindle setups.

Can the tap be used for automated production cycles?
Yes, the combination of HSS material, Form B geometry and chamfered lead supports stable entry and reliable performance in machine-based tapping cycles.

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