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

The combination of HSS‑Co construction, a 60° centring geometry and the extra‑long 120 mm design ensures reliable and repeatable centring even in deep set‑ups; order the TECWERK centre drill directly via Metav Werkzeuge or consult our product specialists for application advice.

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

The TECWERK centre drill (DIN 333 Form A, Ø 2.5 mm) is a precision tool for producing centring holes to DIN 332, designed for general-purpose workshop and production use where deeper centring is required.

• HSS‑Co for higher wear resistance
• Extra‑long overall length: 120 mm
• 60° centring angle, compliant with DIN 332
• Right‑hand cutting for standard lathe and drilling use

Accurate centring that reduces rework and scrap

The carefully ground 60° tip geometry conforms to the DIN 332 requirement and delivers a consistently centred start for subsequent drilling or turning operations. By creating a precise pilot seat, the centre drill significantly reduces the risk of off‑centre holes and the need for secondary alignment work. The carbide‑reinforced high‑speed construction ensures sustained accuracy across a production run, translating into fewer rejects and a smoother process chain for batch and single‑piece manufacturing.

Durable alloy construction for demanding conditions

Manufactured from HSS‑Co, the tool is engineered to resist heat and abrasion better than plain high‑speed steel, extending tool life where elevated cutting temperatures occur. The right‑hand cutting geometry provides stable chip evacuation in conventional machine directions, while the over‑long 120 mm overall length facilitates centring in recessed or long‑flanged components without compromising accessibility. This combination supports longer tool life and lower tooling cost per part in repetitive operations.

Reliable process parameters and machine compatibility

The centring tool is optimised for general application and offers a recommended feed in steel up to 800 N of 0.03 mm/rev, providing a practical balance between cycle time and surface integrity. The 8 mm shank diameter suits standard drill chucks and collet systems commonly found in machine shops, ensuring straightforward integration into existing tooling setups. These measurable data points allow process planners to predict cycle times and machining behaviour with confidence.

Practical handling and workshop benefits

The tool's extra length must be clamped securely to avoid deflection during operation; when mounted correctly, the design ensures access to deep centres while maintaining stiffness. As a general‑purpose centring solution, it simplifies inventory by covering a broad range of centring tasks without specialist variants. The robust alloy and standardised geometry make the tool a dependable choice for maintenance departments, toolrooms and production lines seeking reproducible centring performance.

Specify TECWERK centre drills through Metav Werkzeuge for assured centring quality; Metav Werkzeuge’s specialists can advise on suitability and ordering to match production requirements

Technical Data

• SKU: 2000861979NW
• Product type: centre drill
• Standard: DIN 333 Form A
• Material: HSS‑Co
• Execution: extra‑long version; without protective countersink

Facts

• Diameter: 2.50 mm
• Overall length: 120 mm
• Shank diameter: 8 mm
• Countersink/centring angle: 60°
• Feed in steel up to 800 N: 0.03 mm/rev

Special features

• Right‑hand cutting
• For producing centre holes to DIN 332 without protective countersink
• General‑purpose application
• Over‑long build for deep centring tasks

FAQ

What angle does the centre drill use for centring?
The TECWERK centre drill uses a 60° centring angle in accordance with the DIN 332 specification for reliable pilot seating.

Which material is the tool made from?
The tool is manufactured from HSS‑Co, a cobalt‑alloyed high‑speed steel designed for improved heat and wear resistance in repetitive centring operations.

What is the overall length and why is it useful?
With an overall length of 120 mm, the extra‑long design allows centring in recessed or hard‑to‑reach areas where standard lengths would not reach.

What feed rate is recommended for steel?
For steel up to approx. 800 N, a feed of 0.03 mm/rev is indicated for consistent centring results and controlled chip formation.

Which machines and toolholders are compatible with the shank?
The 8 mm shank fits standard chucks and collet holders used in many drill presses, lathes and machining centres, facilitating quick integration.

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