20mm Core Drill HSS TiAlN Coating 30mm Cutting Depth Weldon Shank - Ruko GmbH

Take advantage of the combination of high-performance HSS, TiAlN wear protection and a secure Weldon shank for reliable boremaking and longer tool life. Order directly via (Metav Werkzeuge) or ask the consultancy team for application advice.

RUKO Core Drill D20 mm – HSS with TiAlN coating, 30 mm cutting depth

The RUKO Core Drill D20 mm is a precision core drill designed for demanding metalworking tasks, offering robust HSS construction and a TiAlN surface treatment for extended service life in production and maintenance environments.

• TiAlN coating for high wear resistance
• Weldon 3/4" shank for secure clamping
• 30 mm cutting depth for deep bores
• Suitable for alloyed and stainless steels

Engineered for sustained cutting performance

The tool is manufactured from HSS and finished with a TiAlN coating, which raises surface hardness to approximately 3000 HV and preserves hot hardness up to 900°C. This combination enables higher cutting values and extended life under thermal stress; in practice it means fewer tool changes and more consistent cycle times. The 6 cutting edges reduce load per edge and contribute to stable chip formation, while the TiAlN layer also makes the tool suitable for dry machining, reducing coolant dependency in many applications.

Secure clamping for repeatable bore accuracy

A Weldon shank of 19.05 mm (3/4") provides positive axial locking and minimises slippage in heavy-duty holders, improving repeatability across serial operations. The tool’s 20 mm nominal diameter and 63 mm overall length allow confident setup in common milling and drilling fixtures. Secure clamping reduces runout and vibration, which directly benefits hole geometry and surface finish while lowering the risk of premature flank wear.

Broad material compatibility for workshop versatility

This core drill is optimised for unalloyed and alloyed steels up to 1200 N/mm², as well as high-chromium stainless steels (V2A, V4A), steel castings and tougher brass grades. The specified 30 mm cutting depth covers many standard bore requirements encountered in fabrication and repair tasks. Where material composition varies between batches, the TiAlN coating supports stable performance across mixed workloads, reducing the need for frequent tool swaps.

Practical benefits for efficient workshop workflows

Designed as a ready-to-fit production tool, the core drill supports quick changeovers and consistent outputs in batch work. The combination of HSS substrate and TiAlN wear protection delivers a cost-effective balance between initial investment and tool life, particularly where dry machining is advantageous for process cleanliness or where coolant use is limited. The compact overall length and standard Weldon interface simplify inventory management and enable compatibility with existing toolholders.

For specification matching, delivery options and application advice contact Metav Werkzeuge for personalised guidance and prompt supply from Emmerich – email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 4000602397NW
• Product: Core drill
• Label: Kernbohrer D.20mm HSS TiAlN Schnitt-T.30mm Weldon RUKO

Facts

• Diameter: 20 mm
• Overall length: 63 mm
• Cutting depth: 30 mm
• Cutting edges: 6

Special features

• Material: HSS
• Coating: TiAlN
• Shank: Weldon 19.05 mm (3/4")
• Packaging unit: 1

FAQ

What materials can this core drill machine reliably?
The RUKO core drill is suitable for unalloyed and alloyed steels (up to 1200 N/mm²), high-chromium stainless steels (V2A/V4A), steel castings and tough brass, thanks to its HSS substrate and TiAlN coating.

Is the tool suitable for dry machining?
Yes, the TiAlN wear-protection layer is designed to support dry machining and increases hot hardness, allowing effective cutting at elevated temperatures without coolant in many cases.

What shank interface is required for stable clamping?
The tool uses a Weldon shank (19.05 mm / 3/4"), which requires a corresponding Weldon clamping system for secure axial and torsional retention.

How deep can the drill cut in a single pass?
The core drill provides a cutting depth of 30 mm, which is the recommended effective depth for this model.

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