3.15mm Centre Drill DIN 333 Form A HSS-Co 60° Countersink Angle, Right-Hand Cutting - TECWERK

Take advantage of a hardy HSS‑Co construction and a precise 60° countersink to produce standard-compliant centre holes in high‑strength and stainless steels; the result is consistent centring and longer service life. Order directly via Metav Werkzeuge or ask the consultants for application guidance.

TECWERK Centre Drill DIN 333 Form A D 3.15 mm — HSS‑Co, 60° countersink

The TECWERK Centre Drill DIN 333 Form A D 3.15 mm is a precision centre drill for producing accurate centring holes and short pilot bores in high‑strength and corrosion‑resistant CrNi steels

• HSS‑Co alloy for high‑strength materials
• DIN 333 Form A for standard centre holes
• 60° countersink angle for exact centring
• Right‑hand cutting, feed 0.03 mm/rev in steel

Reliable centring in high‑strength and stainless steels

Manufactured from HSS‑Co (cobalt‑alloyed high‑speed steel), this centre drill combines hardness and thermal stability to withstand demanding machining conditions. The cobalt enhancement increases wear resistance when working with materials that have a tensile strength above 800 N/mm², while the 60° countersink ensures the hole geometry matches DIN specifications. This results in reduced runout during subsequent drilling and turning operations, helping to maintain component concentricity and minimise rework.

Conformity to standards for consistent workshop results

Built to DIN 333 Form A, the tool produces centre holes compatible with DIN 332 without a protective countersink, delivering repeatable positioning for lathes and milling fixtures. The 3.15 mm diameter and right‑hand cutting geometry provide a stable pilot entry and a clean sheet‑metal or bar work start. The specified feed of 0.03 mm per revolution in steel up to 800 N/mm² offers a practical machining parameter that balances tool life and productivity for standard workshop setups.

Practical advantages for industrial and trade applications

As a compact centring solution, this centre drill is suited to both production and repair environments where precision and reliability matter. The alloy composition and tool form reduce the frequency of tool changes and the variability between batches, supporting a smoother production flow. In combination with a clear specification and the backing of a trusted distributor, machinists and toolrooms gain a dependable component for repeatable results under challenging material conditions.

Contact Metav Werkzeuge for tailored advice and to secure genuine TECWERK HSS‑Co centre drills for demanding centring tasks

Technical Data

• Article number: 2000861582NW
• Product: TECWERK Centre Drill DIN 333 Form A D 3.15 mm HSS‑Co
• Manufacturer: TECWERK

Facts

• Diameter: 3.15 mm
• Countersink angle: 60°
• Recommended feed in steel ≤800 N/mm²: 0.03 mm/rev
• Packaging unit: 5

Special features

• Material: HSS‑Co (cobalt‑alloyed high‑speed steel)
• Standard: DIN 333 Form A
• Cutting direction: right‑hand cutting
• Application: centre holes according to DIN 332 without protective countersink
• Suitable for: steels >800 N/mm², corrosion‑ and heat‑resistant CrNi steels

FAQ

What materials is this centre drill suitable for?
The TECWERK Centre Drill DIN 333 Form A D 3.15 mm is designed for steels with a tensile strength above 800 N/mm² and for corrosion‑ and heat‑resistant CrNi steels.

What does Form A in DIN 333 signify?
Form A indicates the standardised geometry for centre drills under DIN 333, providing a short pilot followed by the 60° countersink for compliant centring holes.

What feed is recommended when machining steel?
A guide value of 0.03 mm per revolution is given for steel up to 800 N/mm² when using this centre drill.

Is the countersink angle compatible with common lathe centres?
Yes — the 60° countersink angle conforms to DIN specifications and is compatible with standard lathe and centre accessories that expect DIN‑rated centre holes.

How does the HSS‑Co alloy benefit workshop use?
The cobalt‑alloyed HSS‑Co composition increases hardness and thermal stability, improving wear resistance and extending tool life in demanding applications such as high‑strength and stainless steels.

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