M6x1mm Machine Tap HSS Form C Right-Hand Spiral, ISO2 6H Tolerance - Ruko GmbH

Achieve reliable metric M6 × 1 threads in blind holes with a HSS Form C machine tap that combines a 35° right‑hand spiral for efficient chip removal and an ISO2 (6H) tolerance for secure fits; suitable for unalloyed and low‑alloy steels up to 800 N/mm² and for non‑ferrous metals. Order or request application advice through Metav Werkzeuge for fast, expert support.

RUKO Machine Tap DIN 371C M6 x 1 mm HSS (6H) — 35° right‑hand spiral, Form C

The RUKO Machine Tap DIN 371C M6 x 1 mm HSS (6H) is a precision machine tap designed to cut blind metric ISO threads in unalloyed steels and non‑ferrous materials, optimised for reliable chip control in production machines

• HSS Form C for wear resistance and toughness
• 35° right‑hand spiral for safe blind‑hole tapping
• ISO2 (6H) tolerance for consistent internal fits
• Suitable for steels up to 800 N/mm²

Faster, safer threading in blind holes

This high‑speed steel tool with HSS construction and a 35° right‑hand spiral is engineered to evacuate chips back up the flute rather than packing the thread, which reduces the risk of tap breakage during blind‑hole operations. The spiral geometry and flanks relieved design produce a controlled chip formation that is particularly advantageous in automated machining where consistent cycle times are critical. The result is a more reliable production flow and fewer scrapped parts.

Clear material range and performance limits

Designed for machining of unalloyed and low‑alloy steels, this tap is rated for workpieces with tensile strength up to 800 N/mm² and is also suitable for non‑ferrous metals and temper cast iron. Stating the material range and the tensile‑strength limit helps in selecting the correct tool for the task and prevents tool overload. Where higher hardness materials are required, selecting a specialist grade would be recommended to maintain tool life and surface quality.

Dimensioned for accurate fits and easy tool handling

The tap conforms to DIN 13 and is manufactured to ISO2 (6H) tolerance, ensuring a precise internal thread that mates predictably with corresponding fasteners. The Form C geometry and shank Ø 6 mm support secure clamping in standard holders, while the right‑hand cutting direction matches conventional spindle rotation. Each attribute is chosen to simplify setup and to deliver repeatable thread quality in small‑batch and series production alike.

Practical guidance for machine use and tool life

For best results with this tapping tool, ensure adequate chip‑clearing strategy and proper lubrication—use of a suitable cutting fluid and the correct spindle speed reduces friction and extends service life. The tool is supplied individually and is intended for machine tapping applications where controlled feed and rotation are applied. If thread depth, work material or machine set‑up differ from standard conditions, consult technical notes or request further specifications before production.

For precise M6 metric threading with RUKO quality, contact Metav Werkzeuge in Emmerich for ordering and application advice: info@metav-werkzeuge.com | +49 2822 7131930

Technical Data

• SKU: 4000601963NW
• Product: RUKO Machine Tap DIN 371C M6 x 1 mm HSS (6H)
• Manufacturer: Ruko GmbH Präzisionswerkzeuge
• Packaging unit: 1

Specifications

• Thread: M6 × 1 mm
• Shank Ø: 6 mm
• Spiral angle: 35°
• Material hardness limit: up to 800 N/mm² tensile strength
• Tolerance: ISO2 (6H)
• Standard: DIN 13 (sheet 1)

Materials & Features

• Material: High‑speed steel (HSS)
• Form: C
• Flanks: relieved (flanken hinterschliffen)
• Cutting direction: right‑hand cutting
• Application: blind holes (sacklochgewinde)
• Suitable for: unalloyed and low‑alloy steels, temper cast iron, non‑ferrous metals

FAQ

What thread does this tap produce and to which standard does it conform?
The RUKO Machine Tap DIN 371C M6 x 1 mm HSS (6H) cuts metric M6 × 1 threads and is manufactured to DIN 13, providing an ISO‑compatible internal thread.

Is the tap suitable for blind holes or through holes?
The geometry and 35° right‑hand spiral are optimised for blind‑hole tapping, where efficient chip evacuation and reduced risk of tap breakage are required.

Which materials can be machined with this tap?
This RUKO tap is suitable for unalloyed and low‑alloy steels up to 800 N/mm², temper cast iron and a range of non‑ferrous metals.

What clamping diameter is required and how should the tap be held?
The tool has a shank Ø 6 mm and is intended to be clamped in standard machine tool holders capable of securing that shank dimension.

Does the tap have any special relief or coating to improve life?
The tool features flanks relieved to improve cutting action; no coating is specified for this item in the product data.

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