M12x1.75mm Machine Tap DIN 376C HSS-Co5 Form C Right-Hand 35° Rearlanded Flanks ISO2 6H - Ruko GmbH

Take advantage of robust cutting geometry and HSS‑Co5 high‑cobalt performance for consistent thread quality and long tool life; the ISO2 (6H) tolerance and DIN 376C Form C profile ensure reliable fit in production runs. Order the (M12×1.75 machine tap HSS‑Co5, DIN 376C by RUKO, SKU 4000602005NW) directly via Metav Werkzeuge or ask our consultants if needed.

RUKO M12×1.75 Machine Tap DIN 376C — HSS‑Co5, ISO2 (6H)

RUKO M12×1.75 machine tap designed for industrial tapping of blind holes in alloyed and unalloyed steels, offering Form C geometry and a right‑hand 35° spiral

• HSS‑Co5 solid cobalt composition
• DIN 376C Form C geometry
• ISO metric M12×1.75 thread
• Shank Ø 9 mm for machine holders

Precision cutting for repeatable production threads

The M12×1.75 machine tap delivers repeatable thread form thanks to the DIN 376C profile and the ISO2 (6H) tolerance class. These standards define the thread geometry and clearance so mating fasteners fit predictably, reducing assembly rework. The high‑cobalt tool steel (HSS‑Co5) maintains cutting edge integrity under elevated temperatures, which translates into fewer tool changes and steadier cycle times in milling and tapping centres. This combination supports efficient, measurable productivity improvements for batch and series production.

Engineered for blind holes and demanding materials

Form C geometry and the 35° right‑hand spiral evacuate chips effectively from blind holes, which minimises the risk of chip jamming and thread damage. The tool is specified for use in unalloyed and alloyed steels up to 1000 N/mm² tensile strength, as well as in malleable iron and non‑ferrous metals. The honed flanks improve surface finish and reduce burr formation, producing threads that meet functional requirements without additional post‑processing. The overall result is more reliable component assembly and less downstream rework.

Compatibility, handling and machine integration

With a shank diameter of 9 mm, the tap fits standard machine holders and collets for secure clamping and consistent concentricity. The right‑hand cutting direction and solid‑cobalt construction support higher cutting speeds than conventional high‑speed steels, which can shorten cycle times when used within recommended parameters. The tool’s specification is compact yet complete, easing tool selection for maintenance planners and process engineers who require documented, standards‑based solutions for production lines.

Reliability, traceability and procurement advantages

The RUKO tool adheres to recognised DIN and ISO references, offering clear traceability for quality management systems. Using a standardised machine tap reduces variability in threaded parts and supports conformity in assemblies subject to inspection. Procuring such tools via a single partner streamlines supply chains: Metav Werkzeuge supplies precision tools with a European quality filter and trusted logistics, simplifying restocking and technical consultation for workshops and industrial buyers.

For personalised selection or to secure immediate delivery from Metav Werkzeuge — contact our specialists in Emmerich for technical advice and order assistance at +49 2822 7131930 or info@metav-werkzeuge.com

Technical data

• Article number: 4000602005NW
• Manufacturer: Ruko GmbH Präzisionswerkzeuge
• Packaging unit: 1

Facts

• Thread: M12×1.75
• Tolerance: ISO2 (6H)
• Shank diameter: 9 mm
• Spiral angle: 35° right‑hand
• Material strength range specified: up to 1000 N/mm²

Special features

• Material: HSS‑Co5
• Form: DIN 376C Form C
• Application: blind holes
• Flanks honed (Flanken hinterschliffen)
• Metric ISO thread per DIN 13 Blatt 1
• Right‑hand cutting direction

FAQ

What materials can be tapped with this machine tap?
The RUKO M12×1.75 machine tap (HSS‑Co5, DIN 376C) is specified for unalloyed and alloyed steels up to 1000 N/mm², temper‑cast iron and non‑ferrous metals.

Is this tap suitable for blind holes or through holes?
The tool is designed specifically for blind holes; its 35° spiral and chip evacuation geometry reduce the risk of chip build‑up in closed hole conditions.

What tolerance and thread standard does the tap produce?
The tap produces an ISO metric M12×1.75 thread with ISO2 (6H) tolerance and conforms to the DIN 376C Form C profile for machine taps.

What is the shank size and how is it held in the machine?
Shank diameter is 9 mm, suitable for standard collets and machine holders that accommodate 9 mm tool shanks.

Can this tap be used at higher cutting speeds?
Constructed from HSS‑Co5, the tap offers improved heat resistance compared with standard HSS and can be used at elevated cutting speeds within the machine and process limits.

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