M6x1mm Machine Tap DIN 371B HSS-Co5 Form B Straight Flute 6H Tolerance - Ruko GmbH

Take advantage of high wear resistance and precise ISO‑class threading for reliable production; the combination of HSS‑Co5 steel and a straight‑flute Form B geometry ensures consistent chip control and long tool life — order via Metav Werkzeuge or consult our specialists for application support.

Machine tap DIN 371B – M6 x 1.0 mm, HSS‑Co5, Form B (Ruko)

The Machine tap DIN 371B – M6 x 1.0 mm, HSS‑Co5 is a precision tool for creating metric ISO threads in a range of engineering materials, engineered for efficient machine tapping operations.

• HSS‑Co5 for improved wear resistance
• Straight‑flute Form B for efficient chip removal
• ISO2 (6H) tolerance for precise metric threads

Consistent metric threads for production environments

The specially ground Form B geometry combined with HSS‑Co5 (5% cobalt) delivers a balance of hardness and toughness that sustains cutting performance under repeated cycles. The tolerance class ISO2 (6H) ensures manufactured threads meet DIN/ISO specifications for interchangeability, reducing rework and scrap. This makes the tap suitable for series production where repeatable thread quality is required.

Broad material compatibility reduces tool inventory

Designed with a shearing chamfer for through‑hole threads, the tool machines unalloyed and alloyed steels up to 1000 N/mm², as well as temper cast iron and non‑ferrous metals. The material selection and geometry extend tool life when machining harder steels, while still providing clean chips in softer metals. Fewer different taps are needed on the shop floor, simplifying tool management.

Machine‑ready design for secure clamping and handling

A shank Ø 6 mm allows secure mounting in standard toolholders and collets, while the straight flute assists reliable chip evacuation during machine tapping cycles. The tool is right‑hand cutting, matching conventional machine spindle rotation. These features support stable cutting conditions and reduce the risk of tap breakage in automated or CNC applications.

Practical advantages and maintenance guidance

The flanks are relief‑ground to maintain thread form accuracy and to ease chip flow; this reduces torque peaks and extends service intervals. For best results, use appropriate lubricant and follow manufacturer‑recommended speeds for the material in question. Regrinding is possible where recommended; traceability via the SKU supports lifecycle management of the tool.

For precise metric tapping in demanding materials, request tailored advice from Metav Werkzeuge or order this Ruko machine tap through Metav Werkzeuge to benefit from expert selection and reliable supply.

Technical data

• Article number: 4000601924NW
• Item name: Machine tap DIN 371B M6 x 1.0 mm HSS‑Co5 6H Ruko
• Manufacturer: Ruko GmbH
• Packaging unit: 1
• UID: 4000601924NW

Facts

• Thread: M6 x 1.0 mm
• Material grade: HSS‑Co5 (5% cobalt)
• Shank diameter: 6 mm
• Strength range: up to 1000 N/mm²
• Tolerance: ISO2 (6H)
• Cutting direction: right‑hand cutting

Special features

• Form B straight‑flute geometry
• Flank relief ground
• Shearing chamfer for through‑hole threads
• Suitable for unalloyed and alloyed steels, temper cast iron and non‑ferrous metals
• Complies with DIN 13 Sheet 1 and DIN 371B

FAQ

What materials can be machined with this tap?
The Ruko machine tap is suitable for unalloyed and alloyed steels up to 1000 N/mm², temper cast iron and a range of non‑ferrous metals.

Is the thread tolerance suitable for interchangeable assemblies?
Yes, the tool is manufactured to tolerance class ISO2 (6H), providing threads that meet common DIN/ISO interchangeability requirements.

What shank size is required for mounting?
A shank diameter of 6 mm is specified for secure clamping in standard collets and toolholders.

Does this tap support through‑hole threads?
Yes, the tap features a shearing chamfer designed specifically for through‑hole thread applications to improve chip control.

How is chip evacuation handled in this design?
The straight‑flute Form B geometry promotes efficient chip removal during machine tapping, reducing the likelihood of chip congestion.

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