20mm Core Drill Solid Carbide 50mm Cut Depth Quick IN Shank - Ruko GmbH

Take advantage of a combination of high wear resistance, precise 50 mm cutting depth and the fast-change Quick IN 18 mm shank for reliable core drilling in demanding materials; order the tool directly via Metav Werkzeuge or consult our specialists for application advice.

RUKO core drill D.20 mm – Solid carbide core drill, 50 mm cutting depth

The RUKO core drill D.20 mm is a solid-carbide core drill designed for heavy-duty drilling of rails, wear-resistant steels and cast components, featuring a Quick IN 18 mm shank for rapid tool changes.

• Solid carbide construction for long life
• 50 mm cutting depth for deeper holes
• Quick IN 18 mm shank for fast tool change
• Six cutting edges for efficient material removal
• Suited to rails and high-strength steels

Precision and productivity for heavy-duty drilling

The solid-carbide construction delivers consistent tool life and dimensional stability when machining tough materials. With a 20 mm diameter and 50 mm cutting depth, the drill enables confident penetration into rails, Highox/Weldox-type plates and various steels while maintaining hole geometry. The six cutting edges distribute cutting forces evenly, which reduces vibration and supports stable feed rates; this translates into fewer rejects and less machine downtime in production and maintenance operations. The tool’s overall length of 83 mm preserves rigidity and accessibility in confined setups.

Rapid changeover and workflow efficiency

Equipped with a Quick IN 18 mm shank, the core drill is tailored for fast exchanges in standard toolholders, shortening setup times and increasing net machining time per shift. The shank system simplifies clamping and is particularly effective in maintenance environments where multiple tools are swapped during a workday. Reduced changeover duration and the drill’s wear-resistant body combine to improve overall process throughput, enabling workshops to maintain production rhythms without frequent tool adjustments.

Material capability explained for workshop planners

The design is optimised for demanding applications: railway steels, Hardox/Weldox 400, general steel and cast steel as well as high-chromium alloys such as V2A and V4A. In practical terms, this means the core drill handles high-strength and wear-resistant grades that would rapidly blunt many conventional bits. Solid-carbide cutting edges retain hardness at elevated temperatures and preserve cutting geometry, making the tool suitable for both one-off repairs and small-series production where consistent hole quality is required.

Application guidance and handling benefits

When using the drill in tougher materials, steady feed and suitable cooling or lubrication extend life and improve surface finish. The multiple cutting edges reduce axial forces compared with single-point cutters, allowing more controlled penetration through laminates and heterogeneous sections often found in rails or welded constructions. The Quick IN connection also supports workshop flexibility: compatible toolholders enable quick swaps and reduce the need for specialised fixturing, helping to keep setup complexity low.

For operations seeking a robust solid-carbide solution, contact Metav Werkzeuge to discuss the RUKO core drill and secure reliable supply and application support from our Emmerich facility; email info@metav-werkzeuge.com or call +49 2822 7131930.

Technical data

• Article number: 4000602628NW
• Product: RUKO core drill D.20 mm
• Material: Solid carbide
• Diameter: 20 mm
• Total length: 83 mm
• Cutting depth: 50 mm
• Cutting edges: 6
• Shank: Quick IN 18 mm
• Packaging unit: 1
• Manufacturer: Ruko GmbH

Core dimensions

• Diameter: 20 mm
• Cutting depth: 50 mm
• Total length: 83 mm
• Shank diameter: 18 mm (Quick IN)

Special features

• Solid-carbide cutting edges
• Suited for railway steels and Hardox/Weldox 400
• Effective on high-chromium and alloyed steels
• Quick IN shank for fast tool changes

FAQ

What materials is this core drill suitable for?
The RUKO core drill D.20 mm is suitable for railway steels, Hardox/Weldox 400, general steel, steel castings and high-chromium alloys such as V2A and V4A, as indicated in the tool specification.

How does the Quick IN shank affect workshop operation?
The Quick IN 18 mm shank on the RUKO core drill allows rapid tool changes in compatible holders, reducing setup time and increasing available machining time in both maintenance and production environments.

What maintenance or coolant is recommended for long life?
For extended life of the solid-carbide cutting edges, steady feed combined with appropriate coolant or lubrication is recommended; the RUKO core drill retains cutting geometry better under cooled conditions when machining hard or alloyed steels.

Manufacturer/Responsible: Ruko GmbH Präzisionswerkzeuge, Robert-Bosch-Strasse 7, 71088 Holzgerlingen