6-20mm Step Drill UltimateCut 4-Flute Spiral Groove HSS 130° Point, 90° Step Angle - Ruko GmbH

The combination of HSS construction, a 6–20 mm working range and the RUNaTEC cutting geometry delivers genuine time savings and fewer tool changes — a clear advantage for high-throughput fabrication. Order the RUKO ULTIMATECUT step drill directly via Metav Werkzeuge or request technical clarification from the consultants.

ULTIMATECUT Step Drill 6–20 mm HSS with RUNaTEC Spiral Flute by RUKO

The ULTIMATECUT step drill is a consolidated drilling solution for progressive hole sizes, engineered to speed up production and reduce tool inventory in workshop and fabrication environments.

• 6–20 mm range in one tool
• Up to 75% time saving in processing
• HSS with spiral flute
• Four cutting edges, 130° tip angle

Faster output through integrated step drilling

The ULTIMATECUT design combines multiple diameters in a single tool to replace a sequence of individual drills, enabling noticeably faster cycle times. Thanks to HSS construction and the RUNaTEC cutting geometry, the tool achieves up to 75% time saving in many workflows by removing the need for tool changes. The 6–20 mm span covers a wide range of common hole sizes, which supports inventory reduction and streamlines machine set-ups. This paragraph focuses on measurable efficiency gains and how the tool's configuration translates into a leaner production process.

Precision steps and reliable chip management

Key features such as the four cutting edges, 90° step angle and 130° tip angle combine to produce well-defined step transitions and improved centring for successive hole diameters. The spiral flute assists effective chip evacuation, reducing heat build-up and promoting consistent surface finishes during continuous operation. These technical characteristics contribute to stable performance and minimise the risk of rework, supporting productivity targets in repetitive drilling tasks.

Practical benefits for workshop logistics and flexibility

By consolidating several drilling operations into one implement, the tool supports tool consolidation and greater flexibility at the bench or on the machine. Fewer tool changes lead to a smoother workflow and less downtime, which is particularly advantageous in small-batch and mixed-production settings. For procurement, the presence of a single, multi-diameter solution reduces storage needs and simplifies order routines; technical guidance and specification clarification are available through Metav Werkzeuge if required.

For specification checks or to secure stock of the RUKO ULTIMATECUT step drill, contact Metav Werkzeuge in Emmerich: info@metav-werkzeuge.com | +49 2822 7131930

Technical Data

• Article number: 4000865773NW
• Label: Stufenbohrer ULTIMATECUT Bohrber.6-20mm HSS RUnaTEC Spiralnut Z.4 Stufen 8 RUKO
• Manufacturer: Ruko GmbH
• Packaging unit: 1

Facts

• Working range: 6–20 mm
• Cutting edges: 4
• Step angle: 90°
• Tip angle: 130°

Special features

• Material: HSS
• Geometry: RUNaTEC cutting geometry
• Flute: spiral flute
• Packaging unit: 1

FAQ

What diameters are covered by this step drill?
The step drill covers diameters from 6–20 mm, enabling a range of hole sizes without tool changes; the specification is listed for the RUKO ULTIMATECUT (SKU 4000865773NW).

How many cutting edges and which angles does the tool use?
The tool has four cutting edges, a 90° step angle and a 130° tip angle, which together provide defined step transitions and reliable centring performance.

What material is the tool manufactured from?
The drill is made of HSS, chosen for a balance of toughness and wear resistance suitable for multi-step drilling operations.

How does the RUNaTEC geometry affect machining?
RUNaTEC geometry refines the cutting geometry to improve material removal and reduce the need for multiple tools, contributing to efficiency and the reported time savings.

What role does the spiral flute play in performance?
The spiral flute supports continuous chip evacuation, which helps to control heat and maintain consistent cutting conditions across the entire stepped profile.

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