25mm Countersink 75° HSS 3-Flute Cylindrical Shank 10mm, Form C - TECWERK

Take advantage of a robust combination of HSS construction, a 75° countersink angle and a stable 10 mm cylindrical shank for consistent, burr-free hole preparation; order the tool directly via Metav Werkzeuge or consult the Metav team for technical advice.

TECWERK 75° Countersink Ø25 mm, HSS, 3 flutes (10 mm shank)

The TECWERK 75° countersink is a high-speed steel machining tool designed for precise countersinking, deburring and chamfering in metalworking and maintenance applications, delivering clean seating surfaces and reduced rework.

• HSS material for durable cutting
• 75° countersink angle for standard seating
• Three flutes for smooth edge finish
• 10 mm cylindrical shank for stable clamping

Faster, more reliable hole preparation for assembly work

This countersinking cutter combines a 75° geometry with a 25 mm head to produce accurately formed seats for fasteners and fittings. The geometry is optimised to reduce chatter and deliver a consistent chamfer profile, which lowers rework time and increases first-pass yield. As a result, the cutter supports efficient downstream assembly processes and helps maintain production flow by providing predictable, repeatable results.

Durable HSS construction for longer tool life in mixed materials

Made from HSS, the cutter resists abrasive wear and keeps a sharp edge under routine workshop conditions. The high-speed steel body is particularly effective when machining steel, castings and non-ferrous metals, providing a balance between toughness and hardness that suits intermittent drilling and countersinking tasks. The tool’s Form C geometry further contributes to longevity by balancing cutting forces and thermal behaviour during use.

Cutting geometry engineered for burr-free finishing

With three flutes and a right-hand cutting direction, the design produces a clean, burr-free finish and reduces the risk of tearing at hole edges. This specific flute arrangement improves chip evacuation and lowers cutting resistance at moderate speeds, which is why the tool achieves its best results at lower cutting speeds. Where finish quality matters, the cutter minimises secondary deburring operations and supports a neat final appearance.

Stable mounting and easy machine integration

A 10 mm cylindrical shank ensures reliable clamping in standard collets and chucks, providing the rigidity required for accurate hole preparation. The tool’s feed guidance—specified at around 0.2 mm/rev in steel up to 500 N—helps set expectations for process parameters and reduces trial-and-error during setup. The cutter is suitable for use in manual machines and light CNC applications where consistent centring and secure mounting are needed.

For precision countersinking with proven HSS performance, request purchasing advice or place an order with Metav Werkzeuge — contact info@metav-werkzeuge.com or call +49 2822 7131930 for tailored guidance.

Technical Data

• Article number: 2000865137NW
• Product name: TECWERK 75° countersink Ø25 mm, HSS, 3 flutes
• Manufacturer: TECWERK

Facts

• Diameter: 25 mm
• Countersink angle: 75°
• Shank diameter: 10 mm
• Number of flutes: 3
• Feed in steel up to 500 N: 0.2 mm/rev

Special features

• Material: HSS
• Form: C
• Right-hand cutting
• Zylinderschaft (cylindrical shank)
• Ideal for burr-free countersinking, deburring and seating
• Suitable for steel, castings, non-ferrous and light metals
• Best results at low cutting speeds

FAQ

Which materials can be machined with this countersink?
The TECWERK 75° countersink is suitable for steel, castings and a range of non-ferrous and light metals, delivering good finish quality across these materials.

What shank size is required for secure clamping?
A 10 mm cylindrical shank is specified for the cutter, ensuring stable clamping in compatible collets and chucks for accurate machining.

How many flutes does the cutter have and what benefit do they provide?
The tool features three flutes, which improve chip evacuation and help produce a burr-free edge finish with reduced cutting resistance.

Are there recommended feed parameters for use in steel?
A guide value of 0.2 mm/rev in steel up to 500 N is provided for consistent results; final parameters should be adjusted to specific machine capabilities and material conditions.

Is the countersink suitable for CNC use?
Yes, the cutter integrates well into light CNC and manual machine setups where a secure 10 mm shank clamping is available and moderate cutting speeds are used.

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