M16x2mm Machine Tap DIN 376C HSS-Co5 Form C Right-Hand 35° Flank Relief ISO2 6H For Blind Holes - Ruko GmbH

Reliable blind‑hole thread production with HSS‑Co5 wear resistance and ISO2 (6H) tolerance ensures consistent assemblies and reduced rework; order the machine thread tap directly via Metav Werkzeuge or consult our specialists for application advice.

Machine thread tap DIN 376C M16×2 HSS‑Co5 6H (RUKO) – high‑performance Form C tap with 35° right‑hand spiral

Machine thread tap DIN 376C M16×2 HSS‑Co5 6H (RUKO) is a precision machine tap designed for producing metric ISO threads in blind holes, suited to alloyed and unalloyed steels, non‑ferrous metals and malleable cast iron

HSS‑Co5 with 5% cobalt for heat resistance
Right‑hand 35° spiral for blind holes
ISO2 (6H) tolerance for accurate fits

Ensure accurate mating parts with ISO2 tolerance

The tap delivers ISO2 (6H) thread quality and complies with DIN 13 standards, giving repeatable and reliable thread form for assemblies where fit and preload matter. Using a tool with defined tolerance class reduces the need for post‑processing and minimises component rejects. The controlled thread profile supports consistent torque behaviour and predictable assembly performance, which is particularly relevant for production runs and quality‑sensitive applications.

Longer tool life under elevated cutting temperatures

Built from HSS‑Co5 (5% cobalt), the tool sustains higher red hardness compared with standard high‑speed steels, which translates into superior wear resistance during interrupted cuts and elevated operating temperatures. This material choice extends tool life when machining materials up to 1000 N/mm² tensile strength and when tackling tougher alloys, reducing downtime for tool changes. The result is improved productivity and lower unit tool cost over the life of the cutter.

Designed for efficient blind‑hole chip control

The 35° right‑hand spiral and Form C geometry direct chips away from the cutting zone when forming blind‑hole threads, while the relieved flanks reduce chip packing and minimise risk of tool breakage. For machine tapping operations this configuration means fewer interferences during retract cycles and a lower incidence of damaged threads, enabling faster cycle times and higher process reliability on CNC and tapping heads.

Stable clamping and machine compatibility

With a 12 mm shank and right‑hand cutting direction, the tap is optimised for standard tapping holders and automatic tool changers. The compact shank diameter and standardised thread form facilitate secure clamping and concentricity, which supports consistent thread geometry across batches. Compatibility with common machine setups reduces setup time and eases integration into existing production workflows.

For dependable production threading with Ruko machine thread taps, contact Metav Werkzeuge for tailored technical advice and prompt delivery from Emmerich: info@metav-werkzeuge.com, +49 2822 7131930

Technical Data

• Article number: 4000602007NW
• Product name: Maschinengewindebohrer DIN 376C M16×2mm HSS‑Co5 6H RUKO
• Manufacturer: Ruko GmbH
• Packaging unit: 1
• UID: 4000602007NW

Core measurements

• Thread size: M16×2
• Shank diameter: 12 mm
• Spiral angle: 35°
• Applicable tensile strength: up to 1000 N/mm²
• Tolerance class: ISO2 (6H)

Features

• Material: HSS‑Co5 (5% cobalt)
• Form: C
• Spiral: right‑hand spiral for blind holes
• Flanks: relieved (flank ground)
• Thread standard: metric ISO, DIN 13 sheet 1
• Application: blind‑hole threads
• Suitable for: unalloyed and alloyed steels, malleable cast iron, non‑ferrous metals
• Cutting direction: right‑hand cutting

FAQ

Which materials can be machined with this tap?
The machine thread tap is suitable for unalloyed and alloyed steels up to 1000 N/mm², malleable cast iron and various non‑ferrous metals, thanks to its HSS‑Co5 construction.

Is the tap suitable for blind‑hole threading on CNC machines?
Yes, the right‑hand 35° spiral and Form C geometry are specifically designed to improve chip evacuation in blind‑hole applications during CNC tapping cycles.

What tolerance and thread standard does the tool provide?
The tool produces metric ISO threads to DIN 13 with ISO2 (6H) tolerance, ensuring precise and repeatable thread form for mating components.

What is the shank size and mounting requirement?
The tap has a 12 mm shank, compatible with standard tapping holders and automatic tool changers used in machine tapping operations.

How does the HSS‑Co5 material benefit machining performance?
HSS‑Co5 (5% cobalt) offers increased hot hardness and wear resistance compared with standard HSS, reducing tool wear under higher cutting temperatures and extending service life.

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