M18x2.5mm Machine Tap HSS-Co Nitride Vapourised ISO Metric 6H Through Thread, 14mm Shank - TECWERK

Take advantage of the combination of high hot-hardness, precise ISO tolerance and durable surface treatment for dependable thread production; order directly via Metav Werkzeuge or request advice from the technical team.

Machine tap DIN 376B VA M18×2.5 HSS‑Co nitrided & vapourised — TECWERK

The Machine tap DIN 376B VA M18×2.5 HSS‑Co is a straight‑fluted, metric ISO tap designed for through threads in corrosion‑, acid‑ and heat‑resistant steels with tensile strength above 850 N/mm².

• HSS‑Co composition for extended life
• Nitride and vapour coating for wear resistance
• Straight flutes with peel chamfer for through threads
• ISO metric M18×2.5 with ISO2 (6H) tolerance

Robust cutting performance for high‑strength stainless steels

The combination of HSS‑Co (cobalt high‑speed steel) and surface treatments provides a reliable balance of toughness and hot‑hardness. Cobalt alloying increases resistance to softening at elevated cutting temperatures, while the nitride and vapour coating reduce friction and extend tool life under interrupted cuts. This design is therefore suited to demanding alloys and stainless grades with tensile strength greater than 850 N/mm², enabling consistent chip formation and longer service intervals compared with unalloyed high‑speed taps. The result is fewer tool changes and more predictable cycle times on production runs.

Accurate thread form and industrial tolerance for assembly reliability

Compliance with DIN 376B and the metric ISO thread specification ensures threads are produced within ISO2 (6H) tolerance, supporting interchangeability in series production. The flute geometry and flank relief that is ground on the cutting edges deliver a clean thread flank and reduced insertion torque, which minimises stress on thin‑walled components and prevents over‑tightening during assembly. The tap’s M18×2.5 form and adherence to DIN 13 Sheet 1 make it straightforward to integrate into existing quality control regimes and measurement procedures, supporting reproducible inspection and acceptance criteria.

Efficient machining and secure clamping for through‑hole applications

A peel chamfer (Schälanschnitt) and straight flutes are optimised for through‑hole tapping, allowing chips to be expelled axially and reducing the risk of clogging in continuous operations. The solid shank with a 14 mm shank diameter enables reliable clamping in standard toolholders and reduces runout, which helps maintain thread concentricity. The blue ring marking simplifies tool identification at the machine, and the overall specification is matched to production environments where tool life, repeatability and minimal rework are priorities.

For secure procurement of TECWERK machine taps and technical guidance on selecting the right HSS‑Co tools for specific alloys, contact Metav Werkzeuge — specialists ready to advise on application parameters and availability.

Technical data

• Article number: 2000867358NW
• SKU: 2000867358NW
• Manufacturer: TECWERK
• UID: 2000867358NW

Facts

• Thread: M18×2.5
• Standard: DIN 376B; DIN 13 Sheet 1
• Tolerance: ISO2 (6H)
• Shank diameter: 14 mm

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Coating: nitride and vapourised surface treatment
• Flute type: straight flutes
• Chamfer: peel chamfer for through threads
• Form/type: Form B, Type VA
• Cutting edge: flanks ground (flank relief)
• Marking: blue ring
• Application: corrosion‑, acid‑ and heat‑resistant steels >850 N/mm² tensile strength

FAQ

What material is this machine tap intended for?
The TECWERK machine tap DIN 376B VA M18×2.5 HSS‑Co is specified for corrosion‑, acid‑ and heat‑resistant steels with tensile strength above 850 N/mm².

How does the surface treatment improve performance?
The nitrided and vapourised coating on the TECWERK tap reduces friction and increases wear resistance, which extends tool life and improves process stability under demanding conditions.

Is the tap suitable for through‑hole tapping?
Yes, the straight flutes combined with a peel chamfer are designed specifically for through threads to facilitate axial chip evacuation and reduce clogging.

What tolerance and thread standard does it meet?
The tap produces metric threads in compliance with DIN 376B and DIN 13 Sheet 1, delivered to ISO2 (6H) tolerance, ensuring interchangeability in industrial assemblies.

What shank size is required for clamping?
The tool has a 14 mm shank, suitable for standard toolholders that secure the tap for machining.

Manufacturer / Responsible: NORDWEST Handel AG, Robert‑Schuman‑Straße 17, 44263 Dortmund