25mm Core Drill HSS Cutting Length 55mm Weldon Shank - Ruko GmbH

Benefit from a robust combination of high-speed steel construction, a secure Weldon shank and a 55 mm cutting depth for efficient, repeatable holemaking in steel and non‑ferrous alloys. Order directly via Metav Werkzeuge or consult the technical team for application advice.

RUKO annular cutter (Ø 25 mm) — HSS, 55 mm cutting depth, Weldon shank

The RUKO annular cutter is a core‑drilling tool for fast, precise hole production in fabrication, construction and general workshop applications.

• High-speed steel construction
• 55 mm effective cutting depth
• Weldon shank 19.05 mm (3/4")
• Six cutting edges for clean chips

Faster, cleaner holes for production workflows

The annular cutter is designed to remove material in a ring, not as a full‑diameter twist drill, which reduces drilling time and power consumption. Made from HSS, the tool keeps a sharp cutting geometry under sustained loads, delivering clean hole edges and reducing the need for secondary finishing. With a 25 mm bore capability and 55 mm cutting depth, the tool shortens cycle times on repetitive tasks and lowers machine wear through efficient metal removal.

Secure mounting and reliable chip control for workshop use

A Weldon shank (19.05 mm / 3/4") ensures positive clamping in magnetic drill arbors and standard Weldon holders, preventing slippage during heavy cutting. The six cutting edges promote controlled chip formation and evacuation, which helps maintain cutting temperatures and extends tool life. These features translate to fewer interruptions on the job and more consistent hole quality across batches.

Broad material compatibility with predictable results

Engineered for use in structural and plate steels (including T‑beams and large sheets), cast iron, and a range of non‑ferrous and light metals, the cutter suits mixed‑material workshops and onsite fabricators. The tool’s solid‑steel construction provides predictable wear behaviour, enabling planners to estimate tool life and set up replacement intervals—improving production planning and cost efficiency without sacrificing performance.

Practical advantages for everyday machining

The shorter chip path of an annular cutter compared with twist drills reduces heat concentration at the cutting edge and improves coolant access where applicable. For operators, this means fewer broken tools, less manual deburring and faster part throughput. The combination of HSS metallurgy and robust shank design supports routine use with magnetic drills, drill presses and dedicated annular cutter arbors, making the cutter a versatile addition to any workshop toolbox.

Contact Metav Werkzeuge for tailored guidance on integrating the RUKO annular cutter into current setups; technical advice is available by phone +49 2822 7131930 or by email at info@metav-werkzeuge.com

Technical Data

• Article number: 4000602456NW
• Product type: Kernbohrer (annular cutter)
• Brand: Ruko GmbH
• Material: HSS

Core data

• Diameter: 25 mm
• Overall length: 88 mm
• Cutting depth: 55 mm
• Cutting edges: 6
• Shank: Weldon 19,05 mm (3/4")

Special features

• Suitable for steel, T‑beams, large sheets
• Usable on cast iron
• Suitable for non‑ferrous and light metals
• Weldon shank for magnetic drills and Weldon holders

FAQ

What materials is this annular cutter suitable for?
The RUKO annular cutter is suitable for steel (including T‑beams and large sheets), cast iron and a variety of non‑ferrous and light metals.

Which shank does the tool use and what does that mean for mounting?
The cutter features a Weldon shank (19.05 mm / 3/4"), enabling secure clamping in magnetic drill arbors and standard Weldon holders for slip‑free operation.

How deep can the cutter bore in a single pass?
The tool provides a cutting depth of 55 mm, allowing the creation of through‑holes and deep blind holes within that axial range.

How many cutting edges does the cutter have and why does that matter?
With six cutting edges, the cutter delivers controlled chip formation and improved edge quality, which helps reduce rework and extend tool life.

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