4mm NC Spot Drill Solid Carbide 90° Right-Hand For Hard Steel, Cast Iron, Stainless & Non-Ferrous - TECWERK

Take advantage of precise centring and simultaneous chamfering with a rigid solid carbide design and a 90° tip for reliable hole starts; order directly via Metav Werkzeuge or consult the specialists for application advice.

TECWERK NC centre drill D 4 mm — Solid carbide, 90° spot drill

TECWERK NC centre drill D 4 mm is a solid‑carbide, 90° spot drill engineered for accurate positioning and chamfering on NC machines and drill benches

• Solid carbide, 90° tip for accurate centring
• Cylindrical shank to DIN 6535-HA
• Right-hand cutting for fast, precise spot drilling
• Suitable for steels, stainless and non-ferrous metals

Faster, more accurate spot drilling and chamfering

The TECWERK NC centre drill D 4 mm combines a pointed 90° tip with a rigid solid carbide body to ensure repeatable hole starts and clean chamfers. By pairing centring and chamfering in a single pass, the tool reduces cycle time and minimises re-fixturing. The 90° geometry provides a clear visual and dimensional reference for subsequent machining operations, supporting predictable downstream processes and improved first‑pass quality.

Designed for demanding materials and consistent performance

This centre drill is specified for particularly tough workpieces: high‑strength steels, steel castings, grey cast iron, stainless steels and non‑ferrous metals. The combination of carbide construction and a right‑hand cutting geometry maintains edge stability when encountering varied microstructures, reducing the risk of wandering and improving concentricity for threaded or reamed features.

Built to industry standards for reliable machine integration

A cylindrical shank DIN 6535‑HA ensures straightforward clamping in collets and toolholders commonly used on NC machines and drill benches. The standardised shank diameter provides repeatable run‑out performance, simplifies tool changes and supports consistent clamping forces across batches. That compatibility reduces setup time and supports efficient production workflows in both jobbing and serial environments.

Practical machining data and guidance for predictable feeds

The tool is optimised for controlled feed behaviour: a recommended feed in steel under an axial load up to 800 N is 0.06 mm/rev. This figure reflects an operational point for clean centring and chamfering without excessive burr formation; adapt feeds modestly for softer alloys or thin‑walled components. The construction of the tool favours precise positioning on high‑accuracy machines, enabling repeatable starts even at elevated spindle speeds when appropriate toolholding and machine rigidity are maintained.

Contact Metav Werkzeuge for tailored technical advice and to confirm the TECWERK NC centre drill D 4 mm is ideal for the intended application

Technical data

• Article number: 2000865802NW
• Label: NC centre drill D 4 mm, solid carbide, 90° TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Core specifications

• Diameter: 4 mm
• Tip angle: 90°
• Shank: cylindrical to DIN 6535-HA
• Cutting direction: right-hand cutting
• Feed in steel up to 800 N: 0.06 mm/rev

Materials & features

• Solid carbide construction
• Centring and chamfering in one pass
• Suitable for high-strength steels; steel castings; grey cast iron; stainless steels; non‑ferrous metals
• Intended for NC machines and drill benches

FAQ

Which materials can this centre drill process reliably?
The TECWERK NC centre drill D 4 mm is specified for high‑strength steels, steel castings, grey cast iron, stainless steels and non‑ferrous metals, offering stable centring across these materials.

Can centring and chamfering be completed in a single operation?
Yes — the geometry of this solid‑carbide centre drill enables both centring and chamfering in one pass, reducing cycle time and fixture handling.

Which machines is the tool compatible with?
The centre drill is designed for use on NC machines and drill benches; its cylindrical shank to DIN 6535‑HA suits common collets and toolholders.

What is the recommended feed guidance for steel?
A feed of 0.06 mm/rev is indicated for steel under axial loads up to 800 N; adjust feed for different alloys and component geometries as required.

Is the tool solid carbide and what are the benefits?
Yes — the VHM designation denotes solid carbide, providing rigidity, improved concentricity and resistance to deflection for precise hole starts.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com