NEW UltimateCut Twist Drills
The NEW RUKO ULTIMATECUT Jobber Twist Drills with FLOWSTEP® Tip provides optimal performance in hand-held (cordless) power tool drill machines, with extremely fast and energy-saving drilling. The drill bit improves the longevity of the tool life significantly, by improving the possibility of up to 5 times as many holes. The ULTIMATECUT Twist Drill (with FLOWSTEP® Tip) can achieve a time saving of up to 50% on any drilling project. It also has perfect centering, avoiding slipping even on round surfaces such as pipe and tube.

FLOWSTEP®
- 5 x more holes possible
- Up to 50% faster drilling
- Extremely energy saving
The FLOWSTEP® tip |
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Spot centering without center punching and faster spot drilling on a wide variety of materials and surfaces such as pipes. | ![]() |
The FLOWSTEP® technology |
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RUKO's unique cutting edge geometry results in a much smoother and faster drilling process. |
Three-Face Stock
Full power transmission from the machine to the tool and no annoying re-clamping in the drill chuck ensure easy and uncomplicated work.

Applications
Main Applications:
Material | HSS | HSSE-Co5 |
Steel (N/mm2) < 900 | ✔ | ✔ |
Steel (N/mm2) < 1100 | ✔ | |
Steel (N/mm2) < 1300 | ||
Stainless Steel | ✔ | |
Aluminium | ✔ | ✔ |
Brass | ✔ | ✔ |
Acrylic Glass | ✔ | ✔ |
Plastics | ✔ | ✔ |
Wood | ✔ | ✔ |
Secondary Applications:
Material | HSS | HSSE-Co5 |
Bronze | ✔ | ✔ |
Cast Iron | ✔ | ✔ |
Additional Specifications
Material Options | HSS or HSSE-Co5 |
Coating Options | Normal (Uncoated) or Bronzed / Black Oxidized Surface |
Cutting Direction | Right Hand Cutting |
Shaft | 3-Way Clamping Surface |
Tip Grinding | FLOWSTEP® |
DIN | 338 |
Tolerance | h8 |
Core | Normal |
Groove Profile | Normal |
Spiral Angle | 25° - 30° |
Point Angle | 130° |
Drilling Depth | 5 x Diameter (⌀) |
Tip Diameter (⌀) | ≥ ⌀ 3.0mm |
ULTIMATECUT Range Available At RUKO UK
Twist Drill Set (HSS) with FLOWSTEP® Tip |
Step Drill Set (HSS) with Turbo Tip |
Single Step Drill Bit (HSS) with Turbo Tip |
Single Type C Countersink Bit |
From £92.50 | From £249.69 | From £77.33 | From £17.59 |
View Product | View Product | View Product | View Product |

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