25mm Countersink 90° Extra-Long HSS Three-Point 3-Flute Cylindrical Shank, For Deburring And Countersinking Steel Cast Non-Ferrous, 0.2mm/Revo - TECWERK

Take advantage of HSS material, DIN 335 C geometry and an extra‑long cylindrical shank for precise, rattle‑free countersinking and reliable deburring in workshop and production environments — order directly via Metav Werkzeuge or consult our specialists for tailored machining advice.

TECWERK Countersink Ø25 mm (DIN 335 C) — 90° HSS, extra‑long shank, 3‑flute

The TECWERK Countersink Ø25 mm (DIN 335 C) is a 90° high‑speed steel countersink with an extended cylindrical shank, designed for chamfering and deburring drill holes in steel, castings and non‑ferrous metals.

• HSS countersink, DIN 335 C standard
• 90° cutting angle for standard chamfers
• Extra‑long cylindrical shank for deep access
• Three‑flute design for vibration‑free cutting

Consistent chamfers through proven geometry

The countersink follows the DIN 335 C geometry and a 90° cone angle to deliver reproducible chamfers that match standard fastener seats. The HSS construction provides a balance of toughness and wear resistance suitable for routine industrial use, while the three‑flute layout reduces chatter for a vibration‑free cut. This combination results in cleaner hole edges, minimised rework and consistent assembly fit — key advantages in batch production or maintenance work where repeatable accuracy saves time and reduces rejects.

Reach recessed holes with confidence

An extra‑long cylindrical shank extends reach into deep or hard‑to‑access bores without the need for special extensions, simplifying set‑ups and reducing the number of tool changes. The cylindrical shank is compatible with standard collets and chucks, enabling secure clamping and concentricity in common toolholders. This extended tool length is particularly useful for fixtures, tube work or components with obstructed access, allowing a single operation to complete both countersinking and deburring in one pass.

Optimised for common workshop materials and feeds

The tool is specified for countersinking and deburring in steel, castings and non‑ferrous metals. For steel up to a material resistance of 500 N, a reference feed of 0.2 mm/rev is given; this means advancing the cutter by 0.2 millimetres for each spindle revolution, a practical starting point to achieve a clean finish without overloading the cutter. When working with softer non‑ferrous alloys or cast materials, reduce spindle speed and increase feed modestly to avoid clogging and to preserve edge life. These guidelines support steady productivity and predictability across typical workshop tasks.

Easy handling and durable service life

Made from high‑speed steel, the countersink can be reground and resharpened in‑house when geometry permits, extending service life and lowering total cost of ownership. The robust design and standardised shank reduce the likelihood of tool failure under normal operating conditions, while the built‑in rattle‑suppression of the three cutting edges improves surface quality on each cycle. For best results, use steady coolant or compressed air clearing when countersinking in materials prone to built‑up edge, and inspect cutting edges regularly for wear to maintain consistent chamfer dimensions.

Contact Metav Werkzeuge today to secure the TECWERK countersink with extra‑long shank or request application support from our machining specialists in Emmerich.

Technical data

• Article number: 2000865395NW
• Description: Countersink Ø25 mm, DIN 335 C, HSS, extra‑long, 3 flutes
• Manufacturer: TECWERK
• Packing unit: 1

Facts

• Diameter: 25 mm
• Countersink angle: 90°
• Number of flutes: 3
• Feed in steel up to 500 N: 0.2 mm/rev

Special features

• Material: HSS
• Shank: cylindrical, extra‑long
• Standard: DIN 335 C
• Application: countersinking and deburring in steel, castings, non‑ferrous metals
• Vibration‑free cutting due to three flutes

FAQ

Which materials is the countersink suitable for?
The TECWERK countersink is intended for steel, castings and non‑ferrous metals, offering reliable chamfering and deburring across these common workshop materials.

What mounting and clamping are required?
A cylindrical shank allows clamping in standard collets and chucks; secure, concentric mounting is recommended for the best finish with this countersink.

What cutting parameters are recommended for steel?
For steel up to 500 N the guideline is 0.2 mm/rev feed; adjust spindle speed and feed for material hardness and surface finish requirements when using the TECWERK countersink (SKU 2000865395NW).

Can the tool be reconditioned after wear?
Yes — as an HSS tool it can be reground where geometry allows; planned regrinding can extend service life and reduce overall tooling costs.

What benefit does the three‑flute design provide?
The three‑flute configuration offers a smoother, rattle‑free cut compared with two‑flute designs, improving surface quality and reducing the chance of chatter marks.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com