20mm Metric ISO Fine Thread Machine Tap MF20x1.5 HSS-Co Form C Right-Hand 40° Undercut 6H For Blind Holes 16mm Shank - TECWERK

Take advantage of the combination of HSS‑Co material, Form C spiral geometry and precise tolerance 6H for efficient, repeatable fine-thread production; order or consult Metav Werkzeuge for tailored application support.

TECWERK machine tap DIN 374C MF 20 x 1.5 mm HSS‑Co 6H

The TECWERK machine tap MF 20 x 1.5 mm is a DIN 374C-form machine thread tap for producing metric ISO fine threads in blind holes, optimised for industrial machining

• HSS‑Co cobalt high‑speed steel construction
• Form C, 40° right‑hand spiral
• Flank‑honed cutting edges for smooth finish
• Metric ISO fine thread MF, tolerance 6H
• Suitable for blind holes; shaft Ø 16 mm

High‑performance threading with cobalt HSS for industrial use

The HSS‑Co composition provides elevated red hardness and wear resistance compared with conventional high‑speed steels, making the tool suitable for sustained machining cycles. The combination of Form C geometry and a 40° right‑hand spiral promotes reliable chip control when producing MF 20 x 1.5 mm metric fine threads in blind holes. In practice, this design reduces the risk of chip congestion, which in turn decreases rework and machine downtime, supporting a predictable production rhythm.

Consistent thread quality and dimensional reliability

Flank honing (flank‑honed cutting edges) improves the surface finish of the internal thread and lowers the likelihood of burr formation at the thread crest. The tolerance 6H conforms to the DIN 13 specification for internal threads and ensures a standardised fit with external threads of the corresponding tolerance class; this supports interchangeability and mating accuracy in assemblies. For technicians and production engineers, the result is repeatable thread geometry and fewer quality rejects.

Material compatibility and secure clamping for machine operation

The geometry and material make the tool suitable for a range of substrates, including steels up to approximately 1,000 N/mm² tensile strength, malleable cast iron, and long‑chipping non‑ferrous metals. The solid shaft Ø 16 mm enables rigid clamping in machine tool holders, improving axial stability and reducing chatter during tapping cycles. For machine shops seeking a durable solution for fine‑pitch internal threading, this specification balances cutting performance with operational robustness.

Secure the TECWERK HSS‑Co machine tap via Metav Werkzeuge for reliable fine threading in industrial applications — contact Metav Werkzeuge in Emmerich for technical advice at info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• SKU: 2000867490NW
• Designation: Machine tap DIN 374C MF 20 x 1.5 mm, HSS‑Co, 6H (TECWERK)
• Packing unit: 1

Facts

• Shank Ø: 16 mm
• Spiral angle: 40° right‑hand
• Material strength capacity: steels up to approx. 1,000 N/mm²

Special features

• HSS‑Co construction
• Form C geometry
• Flank‑honed cutting edges
• Metric ISO fine thread MF per DIN 13
• For blind holes
• Suitable for temper cast iron and long‑chipping non‑ferrous metals

FAQ

What materials can be machined with the TECWERK machine tap MF 20 x 1.5 mm?
The TECWERK machine tap is suitable for steels up to approx. 1,000 N/mm² tensile strength, malleable cast iron and long‑chipping non‑ferrous metals.

Is the tap suitable for blind holes or through holes?
The tool’s Form C geometry with a 40° spiral is designed for blind holes, making the TECWERK MF 20 x 1.5 mm tap appropriate where chip evacuation out of the hole is required.

What does the tolerance class 6H mean for assembly fit?
Tolerance 6H is an internal thread class per DIN 13 that guarantees a standard fit with corresponding external threads, ensuring predictable mating and interchangeability in assemblies produced with the TECWERK tap.

How does flank honing affect thread quality?
Flank honing refines the cutting edges to reduce burrs and improve the surface finish of the internal thread, delivering cleaner threads and fewer post‑machining operations with the TECWERK tap.

Which shank diameter is required for correct clamping of this tap?
The tool is supplied with a shank Ø 16 mm, allowing secure clamping in compatible machine holders for stable tapping cycles using the TECWERK MF 20 x 1.5 mm tap.

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