M27x3mm Machine Tap DIN 376B HSS-Co Form B Straight Flute ISO2 (6H) - TECWERK

Take advantage of the combination of HSS‑Co material, precise ISO tolerance 6H, and a 20 mm shank for dependable machine tapping and consistent thread quality; order directly via Metav Werkzeuge or consult our specialists for application advice.

Machine Tap DIN 376B M27×3 HSS‑Co 6H (TECWERK) — M27×3 machine tap with Form B geometry

A Machine Tap DIN 376B M27×3 HSS‑Co 6H (TECWERK) engineered for producing ISO metric through threads in medium‑strength steels and for secure clamping in industrial tapping machines

• HSS‑Co alloy for high wear resistance
• Form B straight flutes for stable chip evacuation
• Metric ISO thread M27×3 with tolerance 6H
• Shank Ø 20 mm for secure clamping
• For steels up to approx. 900 N/mm² tensile

Durable cutting material for prolonged tool life and consistent threads

The combination of HSS‑Co (cobalt‑alloyed high‑speed steel) and careful heat treatment delivers improved red‑hardness and abrasion resistance, which preserves the cutting edges under repeated thermal load. For workshop and production environments this means reduced wear sequencing and more taps per regrind, yielding a better total cost of ownership. The material choice supports reliable performance when machining carbon and alloy steels with tensile strengths up to 900 N/mm², ensuring that the tool remains dimensionally stable during medium‑duty series production.

Geometry and chip management that lower tapping torque and downtime

A Form B geometry with straight flutes and ground flank relief provides controlled chip formation and evacuation, particularly for through‑hole threading operations. The built‑in relief cut at the tip reduces initial cutting resistance and helps prevent chip jamming during plunge entry, which in turn reduces torque peaks and the risk of tap breakage. These features combine to improve process stability on CNC tapping heads and turret lathes while maintaining clean thread flanks and consistent surface finish.

Tolerance and thread standardisation to ease assembly procedures

Designed to DIN 376B and referencing DIN 13 for thread form, the tool produces an ISO metric thread M27×3 in the 6H tolerance field, suitable for most standard internal thread fits used in mechanical assembly. The defined tolerance ensures interchangeability with ISO standard bolts and fasteners, reducing assembly adjustments and rework. Specifying a tap with this level of standard compliance simplifies procurement and quality control in production lines where component compatibility is essential.

Secure mounting and machine compatibility for efficient changeovers

A shank Ø 20 mm enables reliable gripping in standard collets and machine tool holders, minimising slippage during high‑feed or interrupted operations. The straight‑flute machine tap is intended for machine tapping rather than manual use and suits automated workflows where repeatable positioning and minimal runout are priorities. The tool’s form and shank dimensions support quick changeovers and predictable cycle times, contributing to higher overall equipment effectiveness in medium‑volume manufacturing.

Contact Metav Werkzeuge for stock availability and tailored tapping recommendations — Metav Werkzeuge GmbH in Emmerich can advise on speeds, clamping solutions and delivery via info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: 2000867291NW
• Item name: Maschinengewindebohrer DIN 376B M27x3mm HSS‑Co 6H TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Numbers / Core technical data

• Thread size: M27×3
• Tolerance field: ISO2 (6H)
• Shank diameter: 20 mm
• Suitable material tensile strength: up to approx. 900 N/mm²

Designs / Special features

• Material: HSS‑Co
• Geometry: Form B, straight flutes
• Flank treatment: Flank relief ground
• Standard compliance: DIN 376B; DIN 13 sheet 1
• Tip: Relief cut for through threads

FAQ

What materials can be machined with this tap?
The TECWERK Machine Tap DIN 376B M27×3 HSS‑Co 6H is specified for use in steels up to approximately 900 N/mm² tensile strength and is suitable for common carbon and alloy steels typically encountered in production environments.

Which machines are suitable for using this tap?
This machine tap is designed for mechanical tapping units and CNC tapping heads; the shank Ø 20 mm supports secure clamping in standard tool holders used on these machines.

What does the tolerance 6H mean for assembly?
Tolerance 6H denotes the ISO internal thread tolerance that ensures compatible fits with standard external threads, simplifying assembly and ensuring interchangeability with ISO‑specified bolts.

Is the tap suitable for through threads only?
The tool includes a relief cut for through threads, optimised for through‑hole applications; it can be used where through threading is required to improve chip evacuation and reduce back pressure.

How does the Form B geometry affect performance?
Form B with straight flutes promotes stable chip formation and evacuation, reducing torque spikes and the risk of breakage during machine tapping cycles, which benefits productivity and tool life.

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