M12x1.75mm Machine Tap DIN 376C HSS Form C Right-Hand 35° Chamfer ISO2 (6H) - Ruko GmbH

Take advantage of the combination of precise ISO‑tolerance, robust HSS construction and efficient chip control for consistent thread quality and reduced rework; order directly via Metav Werkzeuge or consult the Metav specialists for application support.

Machine tap DIN 376C M12x1.75 HSS 6H (RUKO) — Form C, 35° right‑hand helix

The Machine tap DIN 376C M12x1.75 HSS 6H (RUKO) is a high‑speed steel machine tap engineered for metric ISO threads in blind‑hole applications, optimised for unalloyed and low‑alloy steels, malleable cast iron and non‑ferrous metals.

• HSS, Form C with 35° right‑hand helix
• Metric ISO thread to DIN 13, tolerance ISO2 (6H)
• For blind holes; suited to steels up to 800 N/mm²
• 9 mm shank; flank relief for improved cutting

Consistent ISO tolerances for reliable production

Constructed in HSS and manufactured to DIN 13 dimensions with ISO2 (6H) tolerance, this tap provides repeatable thread accuracy that reduces scrap and reworking. The Form C geometry together with a 35° helix promotes predictable chip formation and evacuation in interrupted cuts and deep blind threads, which translates directly into shorter cycle times and fewer tool changes. For production environments where thread quality and dimensional conformity are critical, the mechanical specification supports stable machining windows and consistent process planning.

Optimised for blind‑hole threading and diverse materials

The tool is designed specifically for blind holes, with flank relief ground to aid smooth chip flow and prevent jamming at the thread root. Material compatibility covers unalloyed steel and low‑alloy steel up to 800 N/mm² tensile strength, plus malleable cast iron and non‑ferrous metals, enabling a single tool to serve varied job requirements on a workshop floor. The geometry reduces the risk of thread distortion in sensitive alloys, helping maintain component integrity and finish without sacrificial passes.

Machine readiness and secure clamping for stable cuts

A 9 mm shank ensures compatibility with common machine holders, allowing quick tool changes and secure clamping for minimal run‑out. The right‑hand cutting direction and machine tap profile are suited to standard machine tool spindles; the precise shank diameter supports concentricity and reduces vibration, which in turn extends tool life and improves surface finish. Evidence of suitable setup reduces setup time and increases throughput in medium‑volume production.

Practical support and trusted sourcing for workshops

Selection of a tap from a recognised toolmaker like RUKO, supplied through Metav Werkzeuge, pairs technical competence with logistical reliability. Metav's position as a precision partner combines a broad product range and an established quality filter in Emmerich: long‑term availability and verification of specifications support uninterrupted production. For application clarification, additional technical data or feed‑and‑speed recommendations, contact is available via the Metav channels to ensure the tool selection aligns with the machining strategy.

For assured threading performance, request the RUKO machine tap through Metav Werkzeuge or contact the Metav specialists at info@metav-werkzeuge.com / +49 2822 7131930 for tailored advice and procurement support.

Technical data

• Article number: 4000601966NW
• Description: Machine tap DIN 376C M12x1.75 HSS 6H RUKO
• Packaging unit: 1

Core data

• Thread: M12 x 1.75
• Shank diameter: 9 mm
• Helix angle: 35°
• Material strength rating: up to 800 N/mm²
• Tolerance field: ISO2 (6H)

Special features

• Material: HSS
• Form: C
• Cutting direction: right‑hand cutting
• Flank relief: flank surface ground
• Application: blind holes
• Suitable for unalloyed and low‑alloy steels, malleable cast iron and non‑ferrous metals

FAQ

What materials can this machine tap process?
The machine tap DIN 376C M12x1.75 HSS 6H (RUKO) is specified for unalloyed and low‑alloy steels up to 800 N/mm² tensile strength, malleable cast iron and various non‑ferrous metals.

Is this tap suitable for blind‑hole threading only?
The tool is optimised for blind holes due to its flank relief and chip‑control geometry, although it can also be used where appropriate in other similar thread applications.

What shank size is required for the holder?
A 9 mm shank is provided to fit common machine tool holders and collet systems, facilitating secure clamping and reduced run‑out.

Which tolerance and thread standard does the tap meet?
The tap produces metric ISO threads to DIN 13 with a tolerance field of ISO2 (6H), delivering standardised dimensional accuracy for industrial use.

How does the 35° helix affect machining?
The 35° right‑hand helix and Form C geometry improve chip control and evacuation, particularly in interrupted cuts and deeper blind threads, which helps maintain thread quality and reduce tool jams.

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