6.3mm Centre Drill DIN 333 Form B With Countersink 60/120° Right-Hand HSS - TECWERK

Combining HSS construction, DIN 333 Form B geometry and an integrated protective countersink, this centre drill delivers repeatable, accurate pilot bores and secure countersinking for serial metalworking. Order the TECWERK centre drill via Metav Werkzeuge or consult our specialists for technical guidance.

TECWERK centre drill DIN 333 Form B, Ø6.3 mm, HSS with protective countersink

A TECWERK centre drill engineered for accurate centring and combined countersinking in typical metalworking and machining workflows.

• HSS for extended tool life
• DIN 333 Form B geometry
• Integrated protective countersink
• Right‑hand cutting action

Precise geometry that reduces rework and scrap

The DIN 333 Form B design ensures a consistent pilot bore and stable seating for subsequent drilling or turning operations. The Form B geometry combines a short, rigid pilot with a refined countersink profile, which reduces radial runout and minimises burr formation. For production environments where part quality and repeatability matter, this geometry decreases the need for secondary finishing and cuts overall cycle time. The constructive benefit is especially apparent when producing centre holes that serve as references in later machining stages.

Robust HSS construction for continuous use

Manufactured from high‑speed steel (HSS), the tool balances toughness and wear resistance for general workshop and industrial use. HSS maintains cutting-edge hardness at elevated temperatures, which means longer intervals between tool changes compared with standard carbon steels. The Ø6.3 mm main diameter and 20 mm shank provide a stable hold in conventional chucks or collets, supporting straightness under load and reducing chatter. This robustness translates into fewer interruptions on the shop floor and a more predictable production rhythm.

Integrated protective countersink for safer setup

The version with protective countersink combines centring and a guarded countersink in one tool, reducing tool changes and alignment errors. The dual‑angle countersink (60/120°) offers reliable seating for centre holes and helps protect the workpiece surface during initial engagement. Right‑hand cutting action complements standard spindle rotation and ensures conventional chip evacuation. In practice, the integrated countersink lowers setup complexity and minimises the risk of damaging delicate workpiece faces during pilot drilling.

Measurable feed and handling data for efficient programming

For programmable and manual machine operation, the tool’s recommended feed in steel (up to 800 N) is 0.05 mm/rev, a conservative value that balances surface quality and tool life. The 80 mm overall length offers accessibility for through‑work and shallow recesses while keeping overhang low to preserve rigidity. These measurable parameters assist process planners in standardising cycle times and calculating throughput for repetitive tasks. Clear numeric data supports rapid CAM setup and consistent results across batches.

Choose TECWERK centre drills for dependable centring accuracy and simplified set‑ups — contact Metav Werkzeuge for tailored advice or to request order details via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000861636NW
• SKU: 2000861636NW
• Product type: Centre drill
• Brand: TECWERK
• Form: B
• Standard: DIN 333

Measurements

• Diameter: 6.30 mm
• Overall length: 80 mm
• Shank diameter: 20 mm
• Countersink angle: 60/120°
• Feed in steel ≤ 800 N: 0.05 mm/rev

Special features

• Material: HSS
• Execution: with protective countersink
• Cutting direction: right‑hand cutting
• Packaging unit: 1

FAQ

What materials can this centre drill process?
The TECWERK centre drill is made from HSS and is intended for general metalworking; it is suitable for common steels and general workshop materials where HSS performance is appropriate.

Is the countersink angle suitable for standard centre holes?
Yes. The integrated countersink offers 60/120° geometry, designed to produce reliable seating for centre holes in accordance with common machining practices.

How should the tool be held in the machine?
Use a secure chuck or collet matching the 20 mm shank to maintain rigidity and reduce runout during pilot drilling.

What feed rate is recommended for steel workpieces?
For steel up to 800 N, a feed of 0.05 mm/rev is recommended to balance finish and tool life when using this centre drill.

Can this tool be used in automated production with consistent results?
Yes. The DIN 333 Form B geometry and HSS construction support repeatable centring and countersinking, making the tool suitable for standardised production environments.

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