1.25mm Centre Drill DIN 333 Form A HSS-Co 60° Countersink Angle, Right-Hand Cutting - TECWERK

Benefit from robust HSS‑Co construction and a precise 60° countersink angle for repeatable, accurate centre holes in demanding materials; order the TECWERK centre drill directly via Metav Werkzeuge or consult our technical team for application advice.

TECWERK centre drill DIN 333 Form A — 1.25 mm HSS‑Co, 60° countersink

A TECWERK centre drill DIN 333 Form A, 1.25 mm HSS‑Co engineered for reliable centre-drilling in high-strength and corrosion-resistant steels across workshop and production environments

• HSS‑Co for excellent wear resistance
• DIN 333 Form A for standardised centring
• 60° countersink angle for precise alignment
• For materials >800 N/mm² and CrNi steels

Engineered centring for demanding machining

The centre drill combines HSS‑Co material and DIN‑compliant geometry to deliver consistent pre-drilling that secures the axial position for subsequent operations. The Form A design follows DIN 333 standards, enabling interchangeability and predictable behaviour when used before twist drills or drilling cycles. For process planners this means fewer repositioning steps and reduced scrap rates because the workpiece receives a defined 60° countersink that centres subsequent tools reliably. The right-hand cutting geometry provides controlled chip formation and stable entry into the workpiece.

Practical benefits on the shop floor

Standardised centring simplifies tool selection and quality control. The centre drill is suitable for creating centre holes per DIN 332 without a pilot countersink, removing an extra machining step for many applications and speeding up cycle times. Owing to the material and geometry, the tool is applicable for components with tensile strength above 800 N/mm² as well as for chromium‑nickel (CrNi) steels that are corrosion-, acid- and heat-resistant. The recommended feed in steel up to 800 N/mm² is 0.02 mm/rev, a guideline that supports reliable chip load and surface integrity in production runs.

Durability and consistent cutting performance

The cobalt‑alloyed high‑speed steel gives a balanced combination of toughness and hot‑hardness, extending life under intermittent higher temperatures compared with plain high‑speed steel. This results in reduced downtime for tool changes and more uniform part quality across batches. The 60° countersink ensures a clean, concentric start that minimises runout for subsequent drilling or turning operations. For maintenance planning, the controlled cutting behaviour helps predict tool wear and schedule replacements before critical tolerances are affected.

Integration, handling and process assurance

Adopting a DIN‑compliant centre drill streamlines procurement and inventory management: tools meet recognised standards, so drawings, fixtures and machine programmes remain consistent across suppliers. Supplied in a practical pack size, the centre drill suits both small workshops and larger production cells that require traceability and repeatability. For engineers defining feeds and speeds, the clear specification of countersink angle and recommended feed provides an immediate basis for process parameters, reducing trial runs and accelerating ramp-up to full production.

For reliable centring in high‑strength and stainless materials, contact Metav Werkzeuge to request the TECWERK centre drill or obtain tailored machining advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000861578NW
• Designation: TECWERK centre drill DIN 333 Form A 1.25 mm HSS‑Co
• Manufacturer: TECWERK
• Packaging unit: 5
• UID: 2000861578NW

Core figures

• Diameter: 1.25 mm
• Countersink angle: 60°
• Recommended feed in steel up to 800 N/mm²: 0.02 mm/rev
• Applicable material strength: >800 N/mm²

Special features

• Material: HSS‑Co
• Standard: DIN 333, Form A
• Cutting direction: right‑hand cutting
• Application: centre holes per DIN 332 without pilot countersink
• Suitable for: rust‑, acid‑ and heat‑resistant chromium‑nickel steels

FAQ

What materials can this centre drill handle best?
The TECWERK centre drill is suitable for materials with tensile strength above 800 N/mm² and for corrosion‑, acid‑ and heat‑resistant chromium‑nickel steels, providing reliable centring performance in these substrates.

How does the 60° countersink angle affect subsequent drilling?
A 60° countersink creates a standardised entry that centres subsequent tools more accurately, reducing runout and improving the concentricity of drilled holes and turned features.

Is there a recommended feed rate for common steels?
For steels up to 800 N/mm² the recommended feed is 0.02 mm/rev, which balances chip formation and tool life for consistent results.

Does the tool conform to industry standards for interchangeability?
Yes, the design follows DIN 333 Form A, making it compatible with standard centring practices and simplifying tool replacement and process documentation.

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