18mm Core Drill HSS 55mm Cutting Depth Weldon Shank - Ruko GmbH

Benefit from the combination of high-speed steel construction, a 55 mm cutting depth and a Weldon 19.05 mm shank to ensure reliable core extraction and consistent performance in demanding workshop applications; order the core drill directly via Metav Werkzeuge or consult the specialists for technical advice.

RUKO core drill Ø 18 mm HSS — 55 mm cutting depth, Weldon shank

RUKO core drill Ø 18 mm HSS for precise core drilling in steel, cast iron and a range of non-ferrous and light metals

High-performance HSS construction
55 mm cutting depth for deep core holes
Weldon shank 19.05 mm (3/4")
Suitable for steel, cast iron and non-ferrous metals

Consistent cutting power for mixed-metal workshops

The High-speed steel (HSS) body delivers a balance of toughness and wear resistance, making the tool suited to repeated use on a variety of materials. Where cores must be extracted cleanly from structural components, the Ø 18 mm geometry and robust HSS grade reduce the risk of break-out and maintain hole geometry over longer production runs. The specification that rates the tool for steel, cast iron and non-ferrous metals provides clarity on application ranges without requiring specialist materials knowledge.

Reliable core depth and clean removal

A defined 55 mm cutting depth enables the removal of substantial core sections in a single pass, shortening process time compared with shorter drills. The tool’s 5 cutting edges contribute to even chip formation and reduce vibration, which in turn helps to preserve hole roundness and surface quality. In practice this means fewer reworks and more stable cycle times on repetitive jobs, translating into measurable improvements in workshop throughput.

Secure retention and rapid changeover

The Weldon shank design with 19.05 mm (3/4") diameter supports secure clamping in common holders and adaptors used across fabrication and maintenance shops. The shank form facilitates quick tool changes and dependable torque transfer under load, reducing setup time and the likelihood of slippage during interruption-prone operations. With an overall length 88 mm, the drill provides sufficient reach while still fitting standard holder depths.

Built for production environments

The construction and geometry of the drill address the demands of continuous use: material compatibility and the robust shank together reduce incidental downtimes and help maintain consistent tool life. The combination of HSS material and precise flute geometry makes the tool a pragmatic choice for workshops that require predictable performance without excessive investment in specialised tooling.

Practical handling and maintenance notes

The straight Weldon shaft simplifies clamping and eliminates the need for complex adapters in most cases; regular inspection of the clamping face and periodic sharpening when wear begins will extend service life. For users less familiar with HSS core drills, basic guidance on feed rates and coolant use can reduce thermal loading and preserve edge geometry — measures that support predictable, repeatable results in everyday production.

Application summary and workshop fit

As a compact, workhorse-style core drill, the product suits general fabrication, repair and maintenance tasks where hole integrity and repeatability are priorities. The tolerance-friendly geometry and material suitability ensure that the tool integrates into mixed-metal workflows and supports efficient batch processing with limited set-up complexity.

Contact Metav Werkzeuge for a tailored recommendation or to secure this RUKO core drill — Metav Werkzeuge GmbH in Emmerich can provide detailed application advice and fast delivery: info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• Article number: 4000602449NW
• Label: Kernbohrer D.18mm HSS Schnitt-T.55mm Weldon RUKO
• Manufacturer: Ruko GmbH
• Product type: Core drill
• Material: HSS

Facts

• Diameter: 18 mm
• Cutting depth: 55 mm
• Overall length: 88 mm
• Number of cutting edges: 5
• Shank: Weldon 19.05 mm (3/4")

Special features

• Weldon shank 19.05 mm (3/4")
• Suitable for steel, cast iron, non-ferrous and light metals
• Packaging unit: 1
• UID: 4000602449NW

FAQ

What materials can be machined with this core drill?
The RUKO core drill Ø 18 mm HSS is specified for machining steel, cast iron and a range of non-ferrous and light metals, making it suitable for common fabrication and maintenance applications.

Which shank holder is required for this tool?
A Weldon clamping system compatible with a 19.05 mm (3/4") shank is required; the Weldon shank on the RUKO core drill ensures secure retention in standard holders.

How deep will this drill cut in a single pass?
The core drill provides a 55 mm cutting depth, allowing the removal of significant core lengths in a single operation when used with appropriate feed and clamping.

How many cutting edges does the drill have and why does that matter?
This tool has 5 cutting edges, which supports even chip formation and reduced vibration, contributing to improved hole quality and extended tool life under repetitive use.

What maintenance extends the life of the core drill?
Regular inspection of the cutting faces, correct clamping in a Weldon holder and periodic resharpening when wear occurs will prolong the service life of the RUKO core drill; using suitable coolant where recommended reduces thermal stress.

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