20mm Core Drill HSS 30mm Cutting Depth Weldon Shank 3/4" - Ruko GmbH

Take advantage of the combination of durable HSS construction, a secure Weldon shank and a 30 mm cutting depth for consistent, precise hole-making; order directly via Metav Werkzeuge or consult our specialists for seamless integration into production.

RUKO Core Drill D 20 mm HSS – 30 mm cutting depth, Weldon shank

The RUKO Core Drill D 20 mm HSS is a high-performance core drill for metal fabrication that delivers precise, repeatable holes in steel, cast iron and light non‑ferrous metals while offering firm clamping via a Weldon shank.

• High-performance HSS material
• 30 mm cutting depth for core holes
• Weldon shank 19.05 mm (3/4")
• Six cutting edges for efficient chip removal

Reliable cutting performance for industrial workflows

Constructed from HSS, this core cutter balances toughness and heat resistance to withstand continuous operation in workshop and fabrication environments. The combination of 20 mm diameter with a 30 mm cutting depth and a total length of 63 mm provides a predictable drilling envelope for through‑holes and semi‑through operations. The solid high‑speed steel body reduces the risk of premature wear, supporting longer service intervals and stable cycle times — a clear efficiency gain in production settings.

Secure mounting and improved hole quality

A Weldon shank with a diameter of 19.05 mm (3/4") provides positive axial and torsional locking in suitable holders, reducing runout and vibration during cutting. This stability translates into more precise holes, reduced burr formation and less rework. The shank design also speeds tool changes in hedgehog-style or set-screw chucks, contributing to smoother process flow and measurable time savings on repetitive drilling tasks.

Versatile compatibility with common engineering materials

Designed for machining steel (including structural T‑sections and large sheets), cast iron, and a range of non‑ferrous and light metals, the core drill supports diverse shop requirements without frequent tool swaps. The geometry and number of cutting lips are optimised for reliable chip formation in mixed material work, enabling workshops and maintenance departments to cover multiple applications with a single tool type while maintaining consistent surface and dimensional quality.

Efficient chip control and durable cutting geometry

Equipped with six cutting edges, the cutter promotes finer chip fragmentation and steady evacuation from the hole, which helps to avoid clogging and overheating in deeper cuts. The multi‑edge configuration also distributes cutting forces across several lips, reducing localized wear and sustaining sharpness for longer. Routine care — secure clamping, correct feed and adequate coolant — will preserve the tool’s geometry and maximise service life, ensuring dependable performance in daily production.

Consult Metav Werkzeuge for tailored advice and reliable supply from Emmerich — secure the RUKO core drill with Weldon shank for dependable, precision drilling and arrange next‑day availability through our specialists

Technical data

• Article number: 4000602299NW
• Label: RUKO Core drill D 20 mm HSS, 30 mm cutting depth, Weldon shank
• Manufacturer: Ruko GmbH
• Product type: Core drill
• Packing unit: 1

Dimensions & core data

• Diameter: 20 mm
• Total length: 63 mm
• Cutting depth: 30 mm
• Shank diameter: 19.05 mm (3/4")
• Cutting edges: 6

Materials & special features

• Material: HSS
• Suitable for: steel, cast iron, non‑ferrous and light metals
• Shank type: Weldon
• Application: industrial drilling, fabrication, maintenance

FAQ

Which materials can be machined with this core drill?
The RUKO core drill D 20 mm HSS is suitable for steel (including structural profiles and large plates), cast iron, and various non‑ferrous and light metals, making it versatile for fabrication and repair tasks.

How does the Weldon shank influence performance?
The Weldon shank (19.05 mm / 3/4") provides positive locking in set‑screw or Weldon holders, which reduces runout and vibration and improves hole concentricity when using the RUKO core drill.

What are the effective cutting and overall dimensions?
The tool offers a 30 mm cutting depth with a total length of 63 mm, suitable for standard core drilling operations where controlled depth and repeatability are required.

Why is HSS a good choice for this core drill?
High‑speed steel combines heat resistance with toughness; the HSS construction of the RUKO core drill yields durable cutting performance under intermittent and continuous loads common in workshop environments.

How do six cutting edges affect drilling behaviour?
The six cutting edges promote finer chip formation and efficient evacuation, which helps to maintain cutting stability, reduce localised wear and sustain consistent hole quality over longer runs with the RUKO core cutter.

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