Bosch GSB 21-2 RCT Professional Impact Drill, 1300 W, Blue/Black
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- €269,22
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- €269,22
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Bosch GSB 21-2 RCT Professional – powerful impact drill for demanding tasks
For ambitious DIYers and professionals who need serious power and reliability when working in the workshop or in the field.- 1300 W motor for fast and efficient drilling in all materials
- Speed regulation up to 3000 rpm for complete control
- Robust blue/black design for long life
- Ergonomic handle for comfortable use during extended work
The Bosch GSB 21-2 RCT Professional impact drill is designed for unrivaled power and versatility, making it one of the most sought-after devices in its category. With a 1300 W motor, it delivers outstanding performance that will satisfy even the most demanding craftsmen and DIYers looking for a reliable tool for a variety of tasks.
This drill is perfect for anyone involved in renovation work, construction projects or other tasks that require consistent perforating with impact function. The Bosch GSB 21-2 RCT Professional is a faithful companion when drilling through hard materials such as concrete, brick, steel and wood, making every project easier to complete.
Key product features:
- Constant electronics: Maintain power and operating speed even under high loads.
- Vario-lock: Position the chisel in 12 positions for easier and more precise drilling.
- Turbo function: Increase power for faster and more efficient drilling.
- Robust housing: Ensures durability and long life.
- Additional handle: Increased stability and control during use.
The Bosch GSB 21-2 RCT Professional is easy to use, equipped with intuitive controls that allow you to quickly adjust working parameters. The speed and weld settings offer exceptional drilling precision - ideal for work where precision counts.
The ergonomic design and lightweight construction make the drill easy to maneuver, minimizing fatigue even during prolonged use. The soft grip provides additional comfort, allowing you to work in optimal conditions, without interruptions.
This product is indispensable for professional craftsmen and hobby DIYers who need a reliable and powerful tool that combines functionality, power and flexibility in one. The Bosch GSB 21-2 RCT Professional will help you achieve perfect results on every project.
Specifications
| Purpose of use | For screwdriving, drilling and impact drilling | ||
| mode of operation | electrical connection | ||
| power supply | 230 volts | ||
| tool holder | Keyless chuck, 1.5 mm - 13 mm, with automatic locking function | ||
| service | torque preselection, speed preselection | ||
| Handle | Soft grip on the main handle for a secure grip, additional handle | ||
| Security | overload clutch | ||
| gear ratios | 2-speed gearbox | ||
| driving direction | right and left rotation | ||
| Efficiency | Input power: 1300 watts, output power: 695 watts | ||
| Drilling capacity Ø max. | in wood | 40mm | |
| in steel | 16 mm | ||
| in stone, concrete | 22 mm | ||
| torque | maximum | Hard: 20.5 Nm, soft: 43 Nm | |
| torques | 1st gear: 43 Nm, 2nd gear: 20.5 Nm | ||
| speed | idle speed | 1st gear: 0 to 900 rpm, 2nd gear: 0 to 3,000 rpm. | |
| stroke rate | idle speed | 1st gear: 15,300 rpm, 2nd gear: 51,000 rpm. | |
| operating noise | sound pressure level | 95 dB(A) | |
| sound power level | 106 dB(A) | ||
| Drill | Vibration emission value ah | 5.6 m/s² | |
| uncertainty K | 1.5 m/s² | ||
| impact drilling | Vibration emission value ah | 14.6 m/s² | |
| uncertainty K | 1.8 m/s² | ||
User view
The Bosch GSB 21-2 RCT Professional impact drill is an indispensable tool for anyone who wants to easily perform more demanding home or semi-professional construction work. It is most often used by home craftsmen who are looking for more power, precision and reliability when renovating their home, making furniture or attaching heavier elements to walls. Bosch enjoys great trust among users precisely because of its robustness and well-thought-out design, which makes it easier to use even on longer or more demanding projects.
Because the drill is compact but very powerful (1300 W), it is ideal for those who need a versatile device - switching between drilling and impact drilling is quick, which is useful for concrete, masonry or wood. Many users appreciate that they can reliably get the job done regardless of the complexity of the material, which further confirms the professional reputation of the Bosch brand in the field of tools.
Why buy at Enaa
At Enaa, we make sure you get exactly what you expect: a clearly presented, proven product with accurate descriptions and expert support. On our platform, you are always one step ahead of others, as you can quickly compare different models and choose the right tool for your needs.
Answers to frequently asked questions
Can I drill into reinforced concrete with the Bosch GSB 21-2 RCT Professional hammer drill?
The drill is extremely powerful and suitable for concrete and brick, but when drilling into reinforced concrete, we recommend using special concrete drill bits and taking extra care, as steel reinforcing bars can slow down progress or damage the drill bit.
What is the difference between classic drilling and impact drilling in this model?
Classic drilling is suitable for wood, metal and plastic, while impact drilling in this model activates additional pulses that make it easier to drill into harder materials such as concrete or brick.
Is it possible to adjust the rotation speed?
Yes, the Bosch drill allows for precise speed adjustment, which makes it easier to work with different materials and helps to increase drilling accuracy.
What diameter holes is this drill best suited for?
The GSB 21-2 RCT Professional model allows you to drill holes of various dimensions, but due to its power, it works best with medium to larger diameters in wood, metal and masonry, where you need more performance.
How can I properly maintain this drill?
For a long service life, we recommend regular cleaning, storing in the included case, and checking the drill and bits for wear after each project.
Description updated: October 2025
