71mm Sheet Countersink Drill 4–20mm HSS TiN, 8mm Shank - TECWERK

Take advantage of the combination of HSS cutting steel, a TiN coating and a two‑flute geometry for consistent, burr‑reduced holes in sheet metal and plastics; secure supply and technical advice via Metav Werkzeuge for seamless workshop integration.

TECWERK sheet metal countersink drill Ø 4–20 mm, HSS TiN, L 71 mm

The TECWERK sheet metal countersink drill is a two‑flute HSS tool with TiN coating and a 20° countersink angle, engineered for efficient peeling cuts in thin metal and plastic on standard drilling equipment.

• 8 mm shank with three flats
• Two cutting edges for clean chips
• 20° countersink angle for controlled deburring
• TiN coating for extended tool life

Faster, cleaner drilling with a peeling cut geometry

The tool’s two‑flute geometry and radial relief on the cutting edges produce a peeling cut rather than a pure shear action, which reduces burr formation and the need for secondary finishing. The combination of HSS base material and TiN coating ensures a balance between toughness and wear resistance; TiN acts as a low‑friction barrier that lengthens tool life under mixed‑material conditions. For production environments where consistent hole quality impacts assembly times, this design lowers rework rates and contributes to predictable cycle times.

Compatibility and practical benefits across machines and materials

A straight 8 mm shank with three flats gives secure clamping in standard chucks and collets, enabling use on bench drills and portable machines alike. The usable diameter range 4–20 mm and overall length 71 mm make the tool a versatile choice for multi‑purpose workshops. Its universal character means fewer tool changes when alternating between sheet metal and engineering plastics, which improves workflow efficiency and reduces inventory complexity without compromising performance.

Design features that support productivity and operator safety

The specified 20° countersink angle facilitates controlled deburring while the two cutting edges produce consistent chip formation, simplifying chip evacuation and reducing heat build‑up. Radial undercutting on the flanks promotes a true peeling action, lowering cutting forces and making the tool suitable for thin material where distortion must be minimised. These attributes translate into measurable benefits: shorter cycle times, fewer scrapped parts and a safer, cleaner working area.

For tailored advice on integrating the TECWERK sheet metal countersink drill into existing production processes or for assured supply from Emmerich, contact Metav Werkzeuge: info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000862042NW
• SKU: 2000862042NW
• Label: Blechschälbohrer Bohrber.4-20mm HSS TiN Gesamt-L.71mm Z.2 TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Diameter range: 4–20 mm
• Overall length: 71 mm
• Shank diameter: 8 mm
• Cutting edges: 2
• Countersink angle: 20°

Special features

• Material: HSS
• Coating: TiN (titanium nitride)
• Shank with 3 flats
• Radially undercut, conically increasing cutting edges for a peeling cut
• Universal tool for sheet metal and plastics
• Suitable for use on any drill machine

FAQ

What materials is this countersink drill suitable for?
The TECWERK sheet metal countersink drill is designed for sheet metal and also performs well with many plastics, thanks to its HSS substrate and TiN coating.

How does the TiN coating benefit tool life?
TiN (titanium nitride) reduces friction and wear on the cutting edges of the TECWERK tool, extending life and maintaining hole quality over longer production runs.

Can this drill be used in handheld drills as well as bench machines?
Yes, the 8 mm shank with three flats provides secure clamping for use on standard bench drills and portable machines.

What quality of hole finish can be expected from the two‑flute design?
The two‑flute geometry and radial relief produce a peeling cut that minimises burrs, resulting in a cleaner hole and reduced need for secondary finishing.

Is the tool suitable for high‑volume production?
The combination of HSS, TiN coating and a burr‑reducing cutting geometry makes this tool well suited to repetitive tasks where consistent hole quality is required.

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