40mm Core Drill HSS 55mm Cut Depth Weldon Shank 3/4" - Ruko GmbH

Fast, burr‑reduced holemaking is achieved by the combination of HSS construction, a 55 mm cutting depth and a robust Weldon shank 19.05 mm (3/4"); order the annular cutter directly via Metav Werkzeuge or request specialist advice from our consultants.

RUKO annular cutter D40 HSS, 55 mm cutting depth, Weldon shank

The RUKO annular cutter D40 HSS is a high‑performance core drill designed for efficient, burr‑minimised hole production in steel, cast iron and light non‑ferrous metals for industrial and workshop applications

• High-performance HSS construction
• 55 mm effective cutting depth
• Weldon shank 19.05 mm (3/4")
• Suitable for steel, cast iron and light metals

Precision and performance for demanding holemaking

The annular cutter delivers consistent, dimensional drilling where material removal must be quick and precise. Built from HSS, the tool provides a balanced combination of hardness and toughness that supports reliable cutting across a range of metals. With a 40 mm diameter and 55 mm cutting depth, the cutter removes only the material that forms the hole, reducing cycle time compared with full‑bore drilling. The geometry with ten cutting edges improves chip formation and helps produce a clean bore with minimal burrs, which reduces finishing work and increases throughput on production lines.

Machine fit and practical handling for the workshop

A defined Weldon shank 19.05 mm (3/4") ensures secure clamping in Weldon holders and compatible tool adaptors, giving stable running at feed and speed settings appropriate for the workpiece. The tool’s overall length of 88 mm provides a compact footprint while maintaining the necessary working reach. The combination of shank design and cutter geometry supports efficient chip evacuation and stable axial force, which is particularly valuable when working with structural steel elements such as T‑beams and large plates as well as with cast parts and light alloys.

Robustness, service life and application range

Manufactured for repeated use in industrial environments, the core drill benefits from the HSS material’s amenability to re‑grinding and reconditioning, enabling refurbishment rather than replacement when wear occurs. The cutter is specified for machining steel, cast iron and non‑ferrous metals, offering versatility for fabrication, maintenance and on‑site assembly tasks. Because the tool concentrates cutting action at the perimeter of the bore, thermal and mechanical loads on the workpiece are reduced, which helps to preserve component integrity and supports predictable, repeatable production results.

For reliable holemaking with RUKO quality, contact Metav Werkzeuge in Emmerich for technical consultation and supply: info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• Article number: 4000602471NW
• Product: Annular cutter (core drill)
• Manufacturer: Ruko GmbH
• Material: HSS

Facts

• Diameter: 40 mm
• Cutting depth: 55 mm
• Overall length: 88 mm
• Cutting edges: 10
• Shank diameter: 19.05 mm (3/4")

Special features

• Weldon shank 19.05 mm (3/4")
• Suitable for steel, cast iron and non‑ferrous metals
• Ten cutting edges for efficient chip formation
• Compact overall length for stable clamping

FAQ

Which materials can be machined with this cutter?
The RUKO annular cutter D40 HSS is suitable for machining steel (including structural profiles and large sheets), cast iron and a range of non‑ferrous and light metals.

What is the supplied shank and which holders are compatible?
The tool features a Weldon shank 19.05 mm (3/4"), compatible with standard Weldon holders and adaptors designed for that diameter.

What hole size and depth does the cutter produce?
The cutter produces a 40 mm bore with an effective cutting depth of 55 mm; the overall length of the tool is 88 mm.

Can the cutter be re‑conditioned after wear?
Constructed from HSS, the cutter can be re‑ground and re‑sharpened by a competent service provider to extend service life.

How does the cutter affect finishing work on bores?
The annular design and ten cutting edges promote clean bores with reduced burrs, lowering the need for subsequent finishing operations.

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