4mm NC Gun Drilled Solid Carbide Pilot Drill 120° Right-Hand Cylindrical Shank DIN 6535-HA For Steel, Cast Iron, Stainless Steel, Non-Ferrous Metals

Benefit from precise positioning and robust cutting: the solid carbide 4 mm spot drill with a 120° tip and DIN 6535-HA cylindrical shank delivers fast, accurate spot drilling and reliable centring for threaded holes; order the tool directly via Metav Werkzeuge or consult our technical advisers for process integration.

TECWERK NC spot drill D 4 mm — solid carbide, 120° tip

The TECWERK NC spot drill D 4 mm is a precision spot-drilling tool designed for position-accurate and rapid anbohren on NC machines and boring mills, enabling centring and chamfering of threaded holes in a single operation.

• Solid carbide with cylindrical shank DIN 6535-HA
• 120° tip for reliable centring and chamfering
• Suitable for high-strength steels and stainless steel
• Right-hand cutting; feed up to 0.06 mm/rev at 800 N

Faster, more accurate hole preparation for NC workflows

This solid carbide centre tool is engineered to improve cycle times in CNC and NC operations while maintaining repeatable positioning. The combination of a 4 mm diameter and a 120° tip provides a stable centring geometry that reduces wandering at the start of drilling; the DIN 6535-HA cylindrical shank ensures secure clamping in standard collets. The result is a reduction in secondary operations: centring and chamfering are achieved in a single pass, which shortens setup time and reduces tool changes.

Built for demanding materials and continuous use

Manufactured from solid carbide (VHM) and specified as right-hand cutting, the tool is particularly suitable for high-strength steels, cast steel, grey cast iron, stainless steels and non-ferrous metals. The geometry and material selection support higher cutting pressures, while the stated feed guidance of 0.06 mm/rev at up to 800 N helps maintain consistent tool engagement. This makes the tool a dependable choice for series production and mixed-material batches where process stability is essential.

Process reliability through straightforward integration

Integration into existing setups is straightforward: the DIN 6535-HA shank matches common toolholders and collets, so retrofitting takes minimal time. The right-hand cutting direction conforms to standard spindle rotation, avoiding unexpected torque directions. The tool’s ability to centre and deburr a pre-hole in one operation reduces cycle complexity and improves hole quality, delivering consistent chamfer dimensions that aid subsequent tapping or thread-forming processes.

Practical gains: efficiency, repeatability, and less rework

Using a dedicated spot-drilling tool designed for NC applications translates directly into measurable productivity gains. Fewer tool changes and reduced manual rework lower overall machining time and scrap risk. The solid carbide construction supports longevity under the higher loads typical of tough materials, while the compact geometry helps maintain thermal and mechanical stability during prolonged runs. These advantages contribute to a smoother production flow and more predictable output quality.

For reliable, high-precision pre-drilling choose TECWERK tooling — contact Metav Werkzeuge for purchasing and application advice at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000865820NW
• Label: NC-Anbohrer D.4mm VHM 120Grad TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Diameter: 4 mm
• Tip angle: 120°
• Feed guidance: 0.06 mm/rev at up to 800 N
• Shank: cylindrical shank to DIN 6535-HA

Special features

• Solid carbide (VHM)
• Right-hand cutting
• For centring and chamfering in one operation
• For NC machines and boring mills
• Suitable for high-strength steels, cast steel, grey cast iron, stainless steel and non-ferrous metals

FAQ

What is the primary application of this spot drill?
The TECWERK NC spot drill D 4 mm is intended for precise positioning and rapid spot drilling on NC machines and boring mills, enabling centring and chamfering of threaded holes in a single operation.

Which materials can be machined with this tool?
This solid carbide tool is suitable for high-strength steels, cast steel, grey cast iron, stainless steels and non-ferrous metals as specified in the product description.

How should the tool be clamped?
Use a collet or holder compatible with DIN 6535-HA cylindrical shanks to ensure secure clamping and accurate centring during operation.

What feed should be used for steel?
A feed guidance of up to 0.06 mm/rev at 800 N is indicated for steel; adjust feeds according to machine rigidity and workpiece conditions.

Can the tool replace separate centring and chamfering operations?
Yes — the geometry allows centring and chamfering of threaded holes in one pass, reducing cycle time and the number of tool changes during production.

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