Because every millimeter counts.

Precise centring without centre punching and faster drilling on different materials and surfaces such as pipes. The FLOWSTEP® tip guarantees an easy and smooth drilling process without jamming in the material. This tip also saves time when drilling, as fast and easy drilling is possible without much effort. The twist drill also has the advantage that it is no longer necessary to pre-drill with small drill bits, especially for large drill diameters. This completely eliminates the need to change tools, which also saves a lot of time and tools.

The FLOWSTEP® tip gets its name from the FLOWSTEP® technology developed by RUKO. This specially developed, unique cutting edge geometry leads to a much smoother and quieter drilling process thanks to its gentle step transitions, which significantly reduces the machining time and considerably improves the drilling result. Another guarantee for durability and speed is the proprietary RUKO nano Technology coating, RUnaTEC for short. Thanks to the three-surface shank, the tools are also ideally suited for use in hand-held drills.

The innovative FLOWSTEP® tip in combination with the reduced three-fance shank enables extremely efficient and effortless drilling of large diameters from 13.5 to 20.0 mm.

The large dimensions can be drilled directly without the need for pre-drilling or tool changes. FLOWSTEP® technology ensures clean and secure centering of the drill, even on difficult surfaces such as round materials or pipes. The drilling process is smooth and tilt-free, which significantly reduces the effort required and increases the service life of the tool.

The reduced three-face shank ensures maximum power transmission and prevents slipping in the drill chuck.

Ideally suited for use in hand-held (cordless) power tools when precise work with large drill diameters is required.

HSS-Co 5 stands for High-Speed Steel with 5% cobalt content. High-Speed Steel (HSS) is an alloy known for its hardness, wear resistance and heat resistance and is commonly used in tool manufacturing, particularly for drills, milling cutters and other cutting tools. The addition of cobalt in HSSE alloys can improve the performance and life of the tool by increasing its ability to cope with heat and wear.