12mm NC Spot Drill HSS-Co TiN 90° Cylindrical Shank DIN 1835-A - TECWERK

Take advantage of precise, single‑pass centring and chamfering combined with wear‑resistant materials for reliable cycle times on NC machines; order directly via Metav Werkzeuge or consult the team for application advice.

TECWERK NC spot drill D12 mm — HSS‑Co, TiN, 90°

The TECWERK NC spot drill D12 mm is a purpose‑built centre‑locating tool for positionally accurate, rapid spot drilling and simultaneous chamfering on NC machines and drilling rigs.

• HSS‑Co construction for high wear resistance
• TiN coating for extended tool life
• 90° tip for exact centring and chamfering
• Cylindrical shank to DIN 1835‑A compatibility

Faster, more reliable locating and single‑pass chamfering

The tool combines a robust 90° ground tip with a short lead to deliver consistent, accurate locating prior to subsequent drilling or tapping operations. Thanks to the HSS‑Co substrate and a hard TiN surface layer, the centre drill sustains sharpness over many cycles, reducing repositioning errors and rework. For production environments this means fewer rejected parts and steadier throughput when preparing holes for threads or deeper drilling sequences.

Durable composition that reduces tool changeovers

Manufactured from HSS‑Co, the centre drill tolerates higher temperatures and abrasive loads compared with conventional high‑speed steels, which translates into longer tool life and fewer interruptions. The TiN coating further enhances adhesion resistance and wear protection, especially when working with tougher materials. As a result, maintenance windows can be planned less frequently and tool inventories are used more efficiently, supporting uninterrupted workflows.

Geometry and feed data optimised for NC machining

Designed for right‑hand cutting, the geometry enables precise chip formation and clean centring even at elevated spindle speeds typical for CNC applications. The tool is suitable for a recommended feed of 0.1 mm/rev in steel up to 800 N, balancing material removal and surface condition. The combination of rigid tip geometry and measured feed values ensures predictable hole quality and repeatability across batches, which is crucial for automated machining cells.

Compatibility, handling and workshop integration

The centre drill features a cylindrical shank conforming to DIN 1835‑A, facilitating secure clamping in standard toolholders and reducing setup time. With a tolerance of h8 on the diameter and clearly defined overall and flute lengths, the tool integrates seamlessly into existing tooling racks and CAM setups. Where quick centring followed by tapping or larger drilling is required, the combined centring‑and‑chamfering action saves one machining step and reduces cycle time.

Discuss suitability with Metav Werkzeuge for a tailored supply solution from stock or to align the tool with specific machine and material combinations

Technical Data

• Article number: 2000861392NW
• Product type: NC spot drill D12 mm
• Standard: DIN 1835‑A

Facts

• Diameter: 12 mm
• Overall length: 102 mm
• Spiral length: 30 mm
• Tip angle: 90°
• Tolerance: h8
• Packaging unit: 1

Special features

• Material: HSS‑Co
• Coating: TiN
• Shank: Cylindrical shank to DIN 1835‑A
• Cutting direction: Right‑hand cutting
• Application: Positionally accurate and rapid spot drilling on NC machines and drilling rigs; centring and chamfering of thread holes in a single pass
• Feed recommendation: Feed in steel up to 800 N: 0.1 mm/rev

FAQ

What materials can be machined with this centre drill? The TECWERK NC spot drill D12 mm is made from HSS‑Co with a TiN coating and is suitable for common steels and harder workpieces where a robust, wear‑resistant tip is required.

Is the shank compatible with standard toolholders? Yes, the tool uses a cylindrical shank to DIN 1835‑A, making it compatible with holders designed for that standard and simplifying clamping on most NC machines.

What feed and operating parameters are recommended? A practical reference is 0.1 mm/rev feed in steel up to 800 N, paired with right‑hand cutting; actual values should be matched to the machine and material combination.

Can the tool perform centring and chamfering in one operation? Yes, the geometry is optimised for single‑pass centring and light chamfering of thread holes, reducing cycle time by combining operations.

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