6-27mm Step Drill UltimateCut Spiral Flute 4 Cutting Edges 130° Point Angle HSS - Ruko GmbH

Combine the up to 75% time saving, robust HSS construction and integrated RUNaTEC spiral flute for fewer tool changes and a faster throughput — order directly via Metav Werkzeuge or consult the Metav specialists for specification support.

ULTIMATECUT Step Drill 6–27 mm, HSS, RUNaTEC Spiral Flute — RUKO

The ULTIMATECUT step drill is a multi-step HSS cutter engineered for rapid drilling from 6–27 mm, offering an efficient alternative to multiple single-diameter tools.

• Up to 75% faster drilling
• HSS construction for robust cutting
• RUNaTEC spiral flute for chip evacuation
• Four cutting edges and 8 steps for range coverage

Faster cycle times with demonstrable efficiency

The combination of a revolutionary cutting geometry and an optimised flute design delivers a measurable productivity gain: up to 75% time saving is achieved by reducing tool changes and combining several diameters in one tool. This means a single HSS step cutter replaces multiple conventional drills, shortening process chains and reducing handling. The compact diameter range of 6–27 mm in one tool allows continuous progression through hole sizes without interrupting the machining cycle, resulting in faster setup and higher machine utilisation.

Less handling, simpler inventory, smoother production

By integrating eight progressive diameters into a single tool with four cutting edges, logistics are simplified and downtime from tool changes is minimised. The result is fewer items to manage in the tool cupboard, less fixture disturbance and a leaner procurement process. The spiral-nuted RUNaTEC design supports continuous chip removal, which maintains consistent cutting conditions across each step and reduces the risk of chip-related interruptions during runs.

Consistent hole quality and reliable geometry

The defined 90° step angle and 130° point angle ensure repeatable entry characteristics and steady advancement through sheet or plate work. The geometry, together with the spiral flute, supports clean evacuation of swarf and helps maintain dimensional stability from the smallest to the largest step. This engineered form leads to uniform hole edges and reduces the need for secondary deburring, conserving finishing time in serial production.

Industrial specification and practical integration

Manufactured to meet workshop and production standards, the tool’s HSS substrate balances toughness and sharpness retention for industrial use. The RUNaTEC spiral-nuted configuration and the arrangement of cutting edges facilitate high-feed operation and continuous drilling sequences, providing a practical tool for assembly lines and jobbing workshops alike. The design intention is clear: fewer interruptions, consistent output and streamlined tool handling for production environments.

For procurement, technical specification or order placement of RUKO ULTIMATECUT step drills, contact Metav Werkzeuge GmbH in Emmerich at +49 2822 7131930 or info@metav-werkzeuge.com for reliable supply and expert advice

Technical data

• Article number: 4000865774NW
• Description: Stufenbohrer ULTIMATECUT Bohrber.6-27mm HSS RUnaTEC Spiralnut Z.4 Stufen 8 RUKO
• Manufacturer: Ruko GmbH
• Packaging unit: 1
• UID: 4000865774NW

Facts

• Diameter range: 6–27 mm
• Material: HSS
• Cutting edges: 4
• Steps: 8
• Step angle: 90°
• Point angle: 130°

Special features

• RUNaTEC spiral flute
• Revolutionary cutting geometry
• Up to 75% time saving
• No tool changes required
• Multi-step coverage in one tool

FAQ

What diameter range does this drill cover? The ULTIMATECUT step drill covers a diameter range of 6–27 mm, allowing progressive drilling without tool changes.

How does the tool reduce machining time? The combination of integrated diameters, four cutting edges and the RUNaTEC spiral flute reduces tool changes and improves chip evacuation, which leads to the reported up to 75% time saving in many applications.

How many steps and cutting edges are included? The tool features 8 steps and 4 cutting edges, designed for sequential enlargement of holes with consistent cutting behaviour.

Which material is the step drill made from? The body is manufactured from HSS, chosen for its balance of toughness and cutting performance in production environments.

Is the ULTIMATECUT suitable for continuous production runs? Yes, the combination of robust HSS construction, controlled geometry and spiral chip removal makes the ULTIMATECUT appropriate for sustained production use; reference SKU 4000865774NW for ordering.

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