M5x0.8mm Metric Machine Tap DIN 371C HSS Form C Right-Hand 35° Flank Relief ISO2 6H Blind Hole - Ruko GmbH

Take advantage of HSS durability, ISO2 (6H) thread accuracy and a 35° right-hand spiral for efficient blind-hole threading; order directly via Metav Werkzeuge or consult our specialists for application guidance.

Machine tap DIN 371C M5 x 0.8 mm HSS 6H – RUKO

A Machine tap DIN 371C M5 x 0.8 mm HSS 6H RUKO designed for precise production of metric blind threads in unalloyed and low-alloy steels as well as non-ferrous metals.

• HSS Form C with 35° right-hand spiral
• ISO2 (6H) tolerance for precise fits
• Optimised for blind-hole threading

Consistent thread quality for assembly reliability

The RUKO machine tap is engineered to deliver consistent M5 threads with reproducible preloads and minimal rework. The combination of HSS substrate and flank relief lowers friction during cutting, which preserves flank geometry and reduces the risk of galling. Conformance to DIN 371C and the referencing of DIN 13 Sheet 1 provide a measurable basis for quality assurance, making the tool suitable where dimensional conformity and interchangeability are required.

Efficient chip control and reduced tool breakage in blind holes

With a 35° right-hand spiral, this threading tool actively directs chips away from the thread root when creating blind-hole threads, improving evacuation compared with straight-flute variants. The geometry supports stable cutting in interrupted or deeper blind-hole conditions, which increases process stability and reduces downtime due to tap breakage or rework. The right-hand cutting orientation and optimised flute form translate into smoother cycle times on machining centres.

Broad material compatibility for fewer tool changes

This threading solution is suitable for unalloyed and low-alloy steels up to 800 N/mm² tensile strength, as well as temper cast iron and a range of non-ferrous metals. By selecting a tap capable of handling these materials, workshop planners can reduce tool inventory and changeovers. The tool’s specification supports common workshop applications such as component fastening, jig and fixture assembly, and small-batch production runs where versatility and repeatability are valued.

Practical handling and machine integration

The tap features a 6 mm shank for straightforward clamping in standard toolholders and collets, and its Form C design aids alignment during entry. Right-hand cutting direction corresponds with conventional spindle rotation, simplifying programming on CNC machines. Regular inspection of chisel edges and adherence to recommended cutting fluids will extend service life; replacement is straightforward when wear is detected, maintaining production quality without complex maintenance routines.

For reliable, industrial-grade M5 threading choose the RUKO machine tap and order or request application advice via Metav Werkzeuge — contact info@metav-werkzeuge.com or call +49 2822 7131930 for specialist assistance.

Technical data

• Article number: 4000601962NW
• Designation: Machine tap DIN 371C M5 x 0.8 mm HSS 6H RUKO
• Packaging unit: 1

Facts

• Thread size: M5 x 0.8 mm
• Shank diameter: 6 mm
• Spiral angle: 35°
• Maximum recommended material tensile strength: 800 N/mm²

Features

• HSS material
• Form C geometry
• Right-hand spiral 35°
• Flank relief for improved thread finish
• Metric ISO thread, DIN 13 Sheet 1
• Tolerance class ISO2 (6H)
• Designed for blind-hole threading
• Cutting direction: right-hand
• Suitable for unalloyed and low-alloy steels, temper cast iron, non-ferrous metals

FAQ

What materials is this tap suitable for?
The RUKO machine tap is specified for unalloyed and low-alloy steels up to 800 N/mm², temper cast iron and a range of non-ferrous metals, offering broad applicability for typical workshop tasks.

Is the tap intended for blind or through holes?
This tool is optimised for blind-hole threading thanks to its 35° right-hand spiral that aids chip evacuation and reduces the risk of chip jamming in blind bores.

What tolerance and standard does the tap meet?
The tool conforms to DIN 371C and references DIN 13 Sheet 1 with a tolerance class of ISO2 (6H) for predictable fit and interchangeability.

What is the shank size and how is it clamped?
The tap has a 6 mm shank and is compatible with standard collets and toolholders used for small-diameter machine taps.

Can this tap be used in CNC machining?
Yes; the right-hand cutting direction and Form C geometry make it suitable for integration into CNC spindle programmes for productive threading operations.

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