2.50mm Centre Drill DIN 333 Form B With Countersink 60/120° Right-Hand HSS - TECWERK

Benefit from durable HSS construction, DIN 333 Form B accuracy and an integrated protection countersink for dependable centring; order this centre drill directly via Metav Werkzeuge or contact our consultants for tailored advice.

Centre drill DIN 333 Form B Ø2.5 mm — HSS centre drill with protection countersink (TECWERK)

A Centre drill DIN 333 Form B Ø2.5 mm engineered to create precise starting holes and reliable centring points in general metalworking and production environments.

• HSS construction for reliable durability
• DIN 333 Form B for standard centre holes
• Integrated protection countersink
• 10 mm shank, 56 mm overall length

Precise starts that reduce rework and improve tool life

The DIN 333 Form B geometry ensures repeatable centring for subsequent drilling and turning operations, so locating errors are minimised and secondary tool wear is reduced. The dual-angle 60/120° countersink creates a defined conical seat for the drill point, improving concentricity when transferring to twist drills or lathe operations. Specified as compliant with DIN 333, the design offers a familiar standard for procurement and process documentation in production workshops. This standard conformity supports predictable results and simplifies tool selection for quality-focused operations.

Durable performance from HSS and a protected tip

Manufactured from HSS, the cutting core combines toughness with edge retention for general-purpose metalworking. The version with protection countersink guards the centre point during handling and reduces the risk of tip damage when fitted into chucks or tool holders, lengthening service life and cutting downtime. The tool is right-cutting, optimised for conventional clockwise rotation, and the robust material choice balances cost-efficiency with reliable wear behaviour under typical workshop feeds and speeds.

Simple integration with existing toolholders and workflows

Built with a 10 mm shank and 56 mm overall length, the drill fits standard collets and chucks used across workshop benches and machine tools, enabling quick changeover without additional adaptors. The compact dimensions are advantageous for confined setups and allow consistent alignment in tailstock and fixture applications. A clearly stated feed recommendation — 0.03 mm/rev in steel up to 800 N — provides an initial process parameter that helps to set up machines faster and avoid trial-and-error adjustments, supporting uninterrupted production flow.

Practical uses and operation advice for reliable results

Intended chiefly for the production of centre holes according to DIN 332 sheet 1 Form B, this centre drill is suitable for routine centring tasks in small-batch fabrication, maintenance workshops and serial production where repeatability matters. The integrated countersink reduces burr formation and provides a clean seat for a subsequent drill, lowering the need for secondary deburring. For best results, ensure proper clamping and axial alignment; the specified geometry helps to guide subsequent drills and improves overall hole quality in downstream operations.

Choose the TECWERK centre drill for standardised, durable centring — contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or +49 2822 7131930 for technical guidance and reliable supply

Technical data

• Article number: 2000861632NW
• Product type: Centre drill
• Brand: TECWERK
• Material: HSS
• Standard: DIN 333
• Form: B
• Execution: with protection countersink
• Cutting direction: right-cutting

Core specifications

• Diameter: 2.50 mm
• Overall length: 56 mm
• Shank diameter: 10 mm
• Countersink angle: 60/120°
• Feed in steel up to 800 N: 0.03 mm/rev
• Packaging unit: 5

Special features

• Designed for making centre holes to DIN 332 sheet 1 Form B
• Protection countersink to safeguard the tip
• Standard shank for easy integration
• Suitability: general metalworking centring tasks

FAQ

What is the intended use of this centre drill?
The TECWERK centre drill is designed to produce accurate centring holes and conical seats for starting drills, complying with the DIN 332 sheet 1 Form B specification.

Which materials is the centre drill suitable for?
The centre drill, made of HSS, is intended for general metalworking; the specified feed parameter of 0.03 mm/rev applies to steel up to 800 N.

How is the tool held in the machine?
The 10 mm shank allows mounting in standard chucks and collets typically used on bench drills and lathes.

What is the advantage of the protection countersink?
The integrated protection countersink protects the centre point from damage during handling and reduces burrs at the hole entry, improving tool life and downstream hole quality.

Are there recommended cutting parameters?
A recommended starting feed for steel up to 800 N is 0.03 mm/rev; adjust speeds and feeds according to machine rigidity and material specifics.

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