4mm Centre Drill DIN 333 Form A HSS-Co, 60° Countersink Angle, Right-Hand Cutting - TECWERK

Take advantage of the combination of HSS‑Co construction, DIN 333 Form A geometry and a precise 60° countersink angle for reliable centring in high‑strength and corrosion‑resistant steels; order the TECWERK centre drill directly via Metav Werkzeuge or consult our specialists for tailored recommendations.

TECWERK Centre Drill DIN 333 Form A, 4 mm — HSS‑Co, 60° Countersink

The TECWERK Centre Drill DIN 333 Form A, 4 mm is a precision centre drill for producing centring holes to DIN 332 without protective pre‑countersink, designed for demanding metalworking applications

• HSS‑Co for improved heat resistance
• DIN 333 Form A geometry
• 60° countersink angle for exact centring
• Suited to >800 N/mm² and CrNi steels

Accurate centring for high‑strength components

The tool delivers repeatable centring holes compliant with DIN standards, making it suitable for pre‑drilling operations where precise alignment is essential. The combination of DIN 333 Form A geometry and a 60° countersink angle ensures that centre marks are clean and true, reducing run‑out in subsequent drilling or turning operations. This geometry is especially valuable when working on parts that demand tight concentricity and consistent tool engagement.

Durable HSS‑Co construction for extended service life

Manufactured in HSS‑Co, the centre drill offers enhanced red‑hardness and wear resistance compared with standard high‑speed steels. The cobalt‑alloyed tool steel maintains cutting performance at higher temperatures, which translates into longer tool life under continuous use. For workshops processing high‑strength alloys and heat‑resistant CrNi grades, this construction reduces tool changes and downtime while maintaining cutting quality.

Controlled cutting behaviour and recommended feed

The tool is right‑hand cutting and designed for stable chip formation when used with standard centre‑drilling feeds. For steels up to 800 N/mm² a recommended feed is 0.03 mm/rev, which balances chip evacuation and surface finish. The specified feed value assists in achieving consistent centre holes without overloading the flutes; when machining tougher or more abrasive materials, modest feed adjustments maintain tool integrity and hole quality.

Practical integration into production workflows

Supplied in practical packaging units, the centre drill fits into conventional tool holders and can be used in manual lathes, drill presses and CNC setups that accept small‑diameter centre drills. The combination of standard DIN sizing and familiar geometry simplifies tool selection and inventory management. By choosing a robust, standardised tool, workshops benefit from predictable performance and fewer interruptions in series production.

For reliable centring and improved process stability with the TECWERK HSS‑Co centre drill, contact Metav Werkzeuge for purchase and technical advice from their Emmerich team.

Technical data

• SKU: 2000861583NW
• Item: TECWERK Centre Drill DIN 333 Form A, 4 mm
• Manufacturer: TECWERK

Key figures

• Diameter: 4 mm
• Countersink angle: 60°
• Recommended feed in steel ≤ 800 N/mm²: 0.03 mm/rev
• Packaging unit: 5 pieces
• Material: HSS‑Co

Applications & features

• Right‑hand cutting
• DIN 333 Form A geometry
• Produces centring holes to DIN 332 without protective pre‑countersink
• Suitable for materials >800 N/mm²
• Suitable for rust‑, acid‑ and heat‑resistant CrNi steels

FAQ

What material is recommended for use with this centre drill?
The TECWERK centre drill is designed for high‑strength materials and is explicitly suitable for steels with strength above 800 N/mm² and for rust‑, acid‑ and heat‑resistant CrNi steels.

Is the 60° countersink angle compatible with standard lathe centre requirements?
Yes — the 60° countersink angle conforms to common centring standards and is appropriate for creating centre points used in turning and drilling operations.

What is the recommended feed rate for steel?
For steel up to 800 N/mm² the recommended feed is 0.03 mm/rev; this value optimises chip control and hole quality for the 4 mm centre drill.

How is the tool supplied and stocked?
The tool is supplied in a packaging unit of 5 pieces and follows DIN 333 Form A specifications for straightforward storage and replacement.

Can this centre drill be used in CNC machines and hand drills?
The DIN‑standard geometry and 4 mm diameter make the centre drill compatible with conventional tool holders used in drill presses, manual lathes and CNC machines.

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