2.5mm Centre Drill DIN 333 Form A, HSS-Co, 60° Countersink Angle, Extra Long, Right-Hand Cutting - TECWERK

Benefit from precise centre-hole formation and extended tool life thanks to HSS‑Co construction and a defined 60° countersink; the extra‑long design provides deeper reach for demanding set-ups. Order the TECWERK centre drill directly via Metav Werkzeuge or consult their specialists for application guidance.

TECWERK centre drill DIN 333 Form A, Ø 2.5 mm – HSS‑Co, extra‑long

TECWERK centre drill DIN 333 Form A, Ø 2.5 mm, HSS‑Co, extra‑long is a right‑hand cutting centre drill designed for the reliable production of centre holes according to DIN 332 without a pilot countersink, suitable for general machining tasks

• Extra-long shank for deep centre holes
• HSS-Co grade for extended tool life
• 60° countersink angle per DIN 332
• 0.03 mm/rev feed in steel up to 800 N

Accurate centres for reliable subsequent machining

A correctly formed centre hole is the foundation for concentric turning and drilling. The DIN 333 Form A geometry of this centre drill produces a 60° countersink that matches DIN 332 centre‑point requirements, ensuring secure seating in centres and chucks. By providing a standardised bevel, the tool reduces run‑out and improves concentricity for follow‑up operations. This consistency translates into fewer rejects and reduced set‑up time on repetitive production runs.

Robust material and design for sustained performance

Manufactured in HSS‑Co (cobalt‑alloy high‑speed steel), the tool offers improved heat resistance and wear properties compared with plain HSS. The cobalt content helps maintain hardness at elevated temperatures encountered during plunge and centre drilling, extending cutting life and preserving edge geometry. The extra‑long configuration enables access to recessed or deep workpieces where standard lengths would be insufficient, while the right‑hand cutting geometry provides predictable chip formation. For steel subject to moderate cutting forces, the recommended feed is 0.03 mm/rev up to approximately 800 N, balancing penetration and tool life.

Practical application on the shop floor

The centre drill is suitable for general use where a defined centre is required prior to turning or drilling. Its geometry means a separate pilot countersink is not necessary when producing centre holes per DIN 332, simplifying workflow for batch and single‑piece work. Handling and clamping in standard drill chucks or toolholders follow normal practice for centre‑forming tools; the Ø 2.5 mm tip size is well suited to small to medium centres. Supplied as a single unit, it integrates into existing tooling sets without special adaptation. For mixed production environments, this combination of standardised geometry and cobalt‑enhanced steel provides a reliable balance of precision and longevity.

For reliable centre drilling with enhanced reach and wear resistance, order the TECWERK centre drill via Metav Werkzeuge or request application advice from their technical team at Metav Werkzeuge to ensure optimal set‑up and tool selection.

Technical data

• Article number: 2000861979NW
• Product name: Zentrierbohrer DIN 333 Form A D.2,5mm HSS-Co re.ü.-lang TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Data

• Diameter: Ø 2.5 mm
• Countersink angle: 60°
• Feed in steel up to 800 N: 0.03 mm/rev

Special features

• Material: HSS‑Co
• Standard: DIN 333 Form A
• Application: for centre holes per DIN 332 without pilot countersink
• Cutting direction: right‑hand cutting
• Design: extra‑long

FAQ

What is the recommended feed for this centre drill?
The TECWERK centre drill features a recommended feed of 0.03 mm/rev in steel up to 800 N, which balances precise penetration with controlled tool wear.

Which standards does the tool conform to for centre formation?
The tool follows DIN 333 Form A geometry and is intended to produce centre holes compatible with DIN 332, allowing direct use without a separate pilot countersink.

What advantages does HSS‑Co provide for centre drilling?
The HSS‑Co composition increases heat resistance and edge stability compared with plain high‑speed steel, improving life expectancy under typical centre‑drilling conditions.

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