4mm NC Spot Drill HSS-Co TiN 90° DIN 1835-A, 12mm Spiral, h8 Tolerance - TECWERK

Combine precise centring, a durable TiN coating and a DIN 1835‑A cylindrical shank for reliable, repeatable spot‑drilling on NC machines; benefit from fast, one‑pass centring and chamfering. Order directly via Metav Werkzeuge or consult the Metav advisors for process support.

NC spot drill D.4 mm HSS‑Co TiN 90° by TECWERK

The NC spot drill D.4 mm is a high‑precision spot‑drilling tool for position‑accurate centring and simultaneous chamfering on NC machines and drilling rigs.

• 90° tip for accurate centring
• TiN coating for extended tool life
• DIN 1835‑A cylindrical shank for secure clamping
• Feed 0.03 mm/rev at 800 N for steel

Fast, accurate centring and chamfering in one pass

Designed for position‑accurate spot‑drilling, this tool enables centring and chamfering of threaded holes in a single operation, reducing setups and cycle times. The 90° tip gives a defined seating angle that simplifies subsequent tapping operations and improves thread alignment. Where process stability is paramount, combining a defined tip geometry with the specified feed of 0.03 mm/rev (steel at up to 800 N) delivers consistent hole starts and reduces the risk of misfeeds or tap breakage, supporting higher first‑pass yields and predictable production throughput.

Built for thermal stress and long life

Manufactured from HSS‑Co (cobalt high‑speed steel) and finished with a TiN layer, the cutter resists heat build‑up and abrasive wear during interrupted cuts typical of spot drilling. The TiN film reduces friction and extends tool life, while the cobalt alloy substrate maintains hardness at elevated temperatures common in NC machining. The tool’s 12 mm spiral and overall length of 55 mm balance chip evacuation with rigidity, allowing stable operation on both automated NC spindles and conventional drilling rigs without sacrificing service life.

Precision fit and reliable clamping for production use

Equipped with a cylindrical shank to DIN 1835‑A and produced to h8 diameter tolerance, the tool offers secure seating in standard collets and toolholders, which minimises run‑out and preserves hole accuracy over long runs. The right‑hand cutting geometry suits standard spindle rotations and supports predictable chip flow. These design choices translate into repeatable hole position and angle control, key for downstream operations such as tapping and reaming in batch production.

Practical benefits for workshop and production environments

For workshop managers and production engineers, the tool reduces handling and setup time by delivering centring and chamfering in one operation and by offering a shank standard that fits common toolholding systems. The combination of HSS‑Co and TiN reduces replacement frequency, while the DIN shank standardisation eases inventory management. The result is a focused improvement in process reliability and a reduction in non‑productive time for routine hole preparation tasks.

For robust, repeatable spot‑drilling with TECWERK quality, contact Metav Werkzeuge — Metav is ready to advise on integration into existing NC processes and to support orders from Emmerich: info@metav-werkzeuge.com, +49 2822 7131930

Technical data

• Article number: 2000861384NW
• Label: NC spot drill D.4mm HSS‑Co TiN 90° TECWERK
• Norm: DIN 1835‑A

Facts

• Diameter: 4 mm
• Overall length: 55 mm
• Spiral length: 12 mm
• Tip angle: 90°
• Tolerance diameter: h8
• Packaging unit: 1
• Feed in steel (up to 800 N): 0.03 mm/rev

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Coating: TiN
• Shank execution: cylindrical shank
• Cutting direction: right‑hand cutting
• Application: position‑accurate and quick spot‑drilling on NC machines and drilling rigs; centring and chamfering of threaded holes in one pass

FAQ

What materials is the NC spot drill suitable for?
The TECWERK NC spot drill D.4 mm (SKU 2000861384NW) is specified for steel applications, with a documented feed of 0.03 mm/rev in steel at up to 800 N; suitability for other materials should be validated in test cuts.

Does the shank fit common toolholders?
Yes, the tool uses a cylindrical shank to DIN 1835‑A and is manufactured to h8 tolerance to ensure secure clamping in standard collets and holders.

What advantage does the TiN coating provide?
The TiN coating on the TECWERK spot drill reduces friction and improves wear resistance, extending tool life under the thermal loads typical of NC spot‑drilling.

Can centring and chamfering be completed in one pass?
The geometry of this NC spot drill is designed to centre and chamfer threaded hole starts in a single operation, improving process efficiency and reducing handling.

What feed values are recommended for reliable operation?
For steel, the tool is specified with a feed of 0.03 mm/rev at loads up to 800 N; this setting supports stable cutting and consistent hole starts for NC production.

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