4mm Centre Drill DIN 333 Form B With Countersink 60/120° Right-Hand HSS - TECWERK

Take advantage of a precise HSS construction and a protective countersink to ensure reproducible centring holes and secure starts for subsequent drilling or turning operations; order the item directly via Metav Werkzeuge or consult our advisors for application-specific guidance.

TECWERK Centre Drill DIN 333 Form B – HSS, 4.00 mm, with protective countersink

The TECWERK centre drill DIN 333 Form B is a high-speed steel centring tool with an integrated protective countersink, designed to produce accurate pilot holes and reliable starts for drilling and turning across general workshop applications.

• HSS material for durable cutting
• DIN 333 Form B standard conformity
• Integrated protective countersink 60/120°
• Right-hand cutting, 4.00 mm diameter

Precise centring to reduce run-out and improve tool life

A purpose-built centre drill in HSS guarantees a defined starting point for subsequent operations, reducing lateral run-out and minimising scrap rates. Conforming to DIN 333 Form B, the tool creates a standardised centring hole that eases alignment for twist drills and live centres. The integrated protective countersink prevents wobble at the entry and ensures the primary drill engages cleanly; this stabilises the process and contributes directly to higher first-pass yields in batch production.

Robust design for everyday workshop reliability

Manufactured from high-speed steel, this centre drill withstands the thermal and mechanical stresses commonly encountered in general machining. The right-hand cutting geometry and a 14 mm shank provide secure clamping and consistent chip flow, while the overall length of 67 mm offers good reach for typical lathe and mill set-ups. The combination of material and geometry supports repeatable performance in steel and a variety of workpiece materials, offering a dependable everyday solution for maintenance, prototyping and series work.

Countersink geometry and feed guidance for predictable results

The tool’s countersink geometry of 60/120° gives a controlled lead-in that prevents burr formation and facilitates accurate seating of centres or drill points. For machining in steel under the stated conditions, a recommended feed of 0.03 mm/rev is noted for steady cutting and minimal chatter; this conservative feed promotes tool life and dimensional stability. Where surface finish and concentricity are critical, the specified geometry helps achieve the necessary tolerances without complex set-up changes.

Practical benefits for procurement and process planning

Choosing a standardised item such as this centre drill simplifies inventory and process documentation: common DIN 333 compliance, a clear 4.00 mm cutting diameter and the presence of a protective countersink mean fewer special tools and faster changeovers. For purchasing and maintenance teams, the standard shank size and conventional cutting direction reduce the need for adapters and expedite installation in existing toolholders. The net effect is improved uptime and predictable production throughput.

For application advice or to secure supply of this TECWERK centre drill directly from Metav Werkzeuge, contact our specialists at info@metav-werkzeuge.com or call +49 2822 7131930 for precise delivery and compatibility information.

Technical data

• Article number: 2000861634NW
• Manufacturer: TECWERK
• Product: Centre drill, DIN 333 Form B, HSS

Facts

• Diameter: 4.00 mm
• Overall length: 67 mm
• Shank diameter: 14 mm
• Countersink angle: 60/120°
• Cutting direction: right-hand
• Feed in steel (≤ 800 N): 0.03 mm/rev
• Standard: DIN 333

Special features

• Material: HSS
• With protective countersink
• Execution: Form B
• Packaging unit: 1
• Intended use: for producing centring holes according to DIN 332 Blatt 1 Form B

FAQ

What materials can this centre drill be used on?
The TECWERK centre drill (DIN 333 Form B, HSS) is specified for general workshop use and is suited to common engineering materials; compatibility with particular alloys depends on cutting data and machine set-up.

What is the purpose of the protective countersink?
The integrated protective countersink on the centre drill reduces start-up wobble and prevents burrs, ensuring a clean seat for subsequent twist drills or live centres.

Which shank size is required for clamping this tool?
The tool features a 14 mm shank diameter, suitable for conventional collets and drill-holding systems designed for that size.

What feed and cutting advice applies for steel?
For steel under the given conditions, a feed of 0.03 mm/rev is indicated to balance tool life and dimensional control.

Is this centre drill compliant with recognised standards?
Yes, the tool is produced to DIN 333 Form B and intended for centring holes in line with DIN 332 Blatt 1 Form B.

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