6-12mm Step Drill HSS Spiral Flute 4 Cutting Edges 90° Step Angle 130° Point Angle - Ruko GmbH

Take advantage of the ULTIMATECUT step drill's combination of reduced cycle times and fewer tool changes for a more efficient workshop process; request product advice or place an order via Metav Werkzeuge for reliable supply and fast delivery.

ULTIMATECUT Step Drill – High-performance HSS cutter with spiral flute and seven steps (RUKO)

The ULTIMATECUT step drill is a multi-step HSS cutter designed for rapid hole production and reduced tool handling in general workshop and fabrication tasks.

• Saves up to 75% processing time
• Revolutionary cutting geometry
• Spiral flute for improved chip evacuation
• Seven-step design reduces tool changes

Faster machining through optimised cutting geometry

The ULTIMATECUT step drill delivers significant time savings by combining a revolutionary cutting geometry with multiple cutting edges. The arrangement of 4 cutting edges and the optimised rake enable progressive material removal across the steps, which reduces the need for multiple tool swaps and shortens cycle times by up to 75%. High-speed steel (HSS) construction provides a reliable balance between toughness and edge retention; HSS is suited to sustained cutting where a sharp, heat-resistant edge is required. The result is a noticeable improvement in throughput for repetitive drilling operations while maintaining consistent hole quality.

Streamlined workflow and controlled hole formation

A seven-step design with a 90° step angle and a 130° point angle ensures predictable step transitions and controlled initial entry into the workpiece. The spiral flute supports efficient chip evacuation, reducing clogging and heat build-up during continuous runs. Because the tool consolidates several diameter stages in a single cutter, the need for interim countersinks or multiple drills is diminished. Fewer operations translate into lower set-up times and reduced handling, which supports a smoother production flow and fewer interruptions for tool changes.

Consistent hole dimensions and low-maintenance operation

The defined step geometry of the cutter produces repeatable diameters across the 6–12 mm range, helping to cut rework and simplify quality checks. The multiple cutting edges distribute wear more evenly, extending service life under comparable conditions. Maintenance is straightforward: regular inspection of cutting edges and proper chip clearance are the main measures to sustain performance. The integrated geometry and material choice combine to deliver dependable hole quality and practical workshop flexibility without the complexity of specialised tooling systems.

Contact Metav Werkzeuge for personalised ordering advice and to secure the RUKO ULTIMATECUT step drill; Metav's Emmerich team can be reached by phone on +49 2822 7131930 or by email at info@metav-werkzeuge.com

Technical data

• Article number: 4000865772NW
• UID: 4000865772NW
• Manufacturer: Ruko GmbH Präzisionswerkzeuge
• Packaging unit: 1

Core specifications

• Drilling range: 6–12 mm
• Cutting edges: 4
• Steps: 7
• Step angle: 90°
• Point angle: 130°
• Time saving: up to 75%

Special features

• Material: HSS
• Spiral flute
• Revolutionary cutting geometry
• No tool changes required
• Designed to reduce tool inventory

FAQ

What diameter range is covered by this step drill?
The step drill covers a 6–12 mm range with defined steps across that span; the RUKO ULTIMATECUT step drill and SKU 4000865772NW list each incremental size on the tool steps.

How does the spiral flute affect performance?
The spiral flute promotes efficient chip evacuation and helps to reduce heat build-up and clogging during extended drilling sequences with the ULTIMATECUT tool.

What do the 90° step angle and 130° point angle mean in practice?
A 90° step angle provides clear step transitions for consistent diameter formation, while the 130° point angle offers controlled entry and centring behaviour when starting a hole.

How many cutting edges does the cutter have and why does that matter?
The cutter features 4 cutting edges, which distribute wear and enable smoother material removal; this supports longer service life and more consistent hole quality.

Is the tool suitable for continuous production runs?
The tool's geometry, HSS material and spiral flute are designed to support repetitive drilling tasks and extended runs with reduced interruption for tool changes.

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