20mm NC Spot Drill HSS-Co TiN 90° Right-Hand Cylindrical Shank DIN 1835-A - TECWERK

Take advantage of the combination of HSS‑Co construction, TiN coating and a 90° centring tip for reliable, repeatable spot drilling on CNC machines; order directly via Metav Werkzeuge or consult the technical team for application-specific advice.

TECWERK NC centre drill D 20 mm, HSS‑Co, TiN, 90°

A TECWERK NC centre drill D 20 mm HSS‑Co TiN 90° designed for precise positioning, fast spot drilling and single‑pass centring and chamfering on CNC machines and drilling centres.

• HSS‑Co substrate with TiN coating
• 90° centring tip for clean chamfering
• Cylindrical shank to DIN 1835‑A

Precision that reduces rework and ensures hole accuracy

Engineered for repeatable positioning, the centre drill combines a 20 mm diameter with a 90° tip to produce accurate starts for subsequent drilling or tapping. The HSS‑Co substrate provides high hot‑hardness for stable cutting, while the TiN coating reduces friction and wear, resulting in more consistent hole geometry and longer tool life. This specification supports reliable process control on CNC machining centres, helping to avoid costly rework and downtime.

Faster operation through integrated centring and chamfering

The tool is designed to centre and chamfer tapped holes in a single operation, streamlining cycle times on production machines. With a specified feed capability of 0.12 mm/rev in steel (up to 800 N), the drill balances cutting efficiency with surface quality. The shortened set‑up and fewer tool changes translate directly into higher throughput and improved manufacturing economics for repetitive, batch and single‑piece production alike.

Secure mounting and repeatability for automated processes

Featuring a cylindrical shank to DIN 1835‑A and diameter tolerance h8, the design prioritises run‑out control and clamping accuracy. The standardised shank form supports direct mounting in tooling systems and arbors used across CNC and NC drilling equipment. Stable clamping and tight tolerance contribute to consistent concentricity, so alignment remains dependable even in automated sequences.

Robust geometry and chip control for clean results

The spiral length of 45 mm and a total length of 131 mm have been calculated to provide sufficient flute depth for chip evacuation while maintaining rigidity for precise starts. Right‑hand cutting geometry ensures conventional chip flow for standard setups. Together, these features deliver clean chamfers and well‑formed hole entries, improving thread engagement and reducing the need for secondary deburring.

Contact Metav Werkzeuge for tailored application advice on TECWERK centre drills and to arrange prompt supply from Emmerich.

Technical data

• Article number: 2000861400NW
• Standard: DIN 1835‑A
• Brand: TECWERK
• Item: NC centre drill

Core data

• Diameter: 20 mm (tolerance h8)
• Total length: 131 mm
• Spiral length: 45 mm
• Tip angle: 90°
• Feed in steel up to 800 N: 0.12 mm/rev
• Packaging unit: 1

Materials and features

• Material: HSS‑Co (cobalt high‑speed steel)
• Coating: TiN (titanium nitride)
• Shank: cylindrical shank to DIN 1835‑A
• Cutting direction: right‑hand cutting
• Application: precise spot drilling, centring and chamfering on CNC machines and drilling centres

FAQ

What materials can this centre drill machine reliably start and chamfer?
The TECWERK NC centre drill D 20 mm (SKU 2000861400NW) with an HSS‑Co substrate and TiN coating is suitable for a broad range of steels and common workshop materials, offering good wear resistance for demanding starts and chamfers.

Is the shank compatible with standard CNC tool holders?
Yes, the cylindrical shank manufactured to DIN 1835‑A ensures compatibility with typical NC arbors and tool holders used on drilling centres and CNC machines.

How does the 90° tip improve hole preparation for tapping?
A 90° centring tip creates a precise entry and a controlled chamfer, which aids subsequent tapping by improving alignment and reducing the risk of tap breakage or poor thread starts.

Can the drill handle automated high‑feed cycles?
The tool is rated for feeds of 0.12 mm/rev in steel up to 800 N, making it suitable for many automated sequences; selection of machine parameters should align with material and clamping conditions.

What advantages does the TiN coating provide in production use?
The TiN (titanium nitride) coating lowers friction and increases surface hardness, which helps extend life under repetitive spot‑drilling and reduces thermal wear during continuous operation.

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