Bosch GDM 121 4″ Concrete and Marble Cutter
Bosch GDM 121 4″ Concrete and Marble Cutter.
| Additional data | |
|---|---|
| Rated input power* | 1,250 |
| Saw blade diameter* | 110 |
| No-load speed | 14.500 rpm |
| Weight | 2.8 |
| Cable length | 2.1 |
| Saw blade bore diameter | 20 |
| Tool dimensions (width) | 210 |
| Tool dimensions (length) | 225 |
| Tool dimensions (height) | 160 |
| Cutting depth | |
|---|---|
| Max. cutting capacity in wood (90°)* | 34 |
* Highlighted Data
The A-rated noise level of the power tool is typically as follows: Sound pressure level dB(A); Sound power level dB(A). Uncertainty K= dB.

Advantages
Best combination of power and weight marble cutter in its class with mass MPP price.
- Powerful motor for tough applications
- Good dust insulation to maintain reliable life time of the powerful motor
- Light weight thanks to ergonomic design
- Comfortable handling

- Ring spanner (spare part number 1 619 P00 281)
- Open-ended spanner.
The Bosch GDM 121 4″ Concrete and Marble Cutter is a compact yet powerful tool designed to excel in precision cutting of hard materials such as concrete, marble, and stone. Developed by Bosch, a global leader in power tools, this cutter is engineered to deliver exceptional performance and durability for both professional tradespeople and DIY enthusiasts tackling tough cutting tasks.
At its core, the GDM 121 features a high-torque 1,200-watt motor, providing ample power to cut through dense materials effortlessly. The motor’s robust design ensures consistent performance, even under heavy loads, making it suitable for cutting tiles, slabs, and bricks with precision and efficiency.
The cutter’s compact size and lightweight construction enhance maneuverability and reduce operator fatigue during extended use. It features an ergonomic handle with a soft grip, promoting comfort and control for accurate cutting in various orientations and angles.
Versatility is a key feature of the GDM 121. It is equipped with a 4-inch diamond blade specifically designed for cutting hard materials like concrete and marble. The blade’s durability and cutting efficiency ensure smooth and clean cuts, minimizing chipping and enhancing the overall finish of the material.
Safety is a priority in Bosch’s design philosophy, reflected in features such as a spindle lock for secure blade changes and a robust blade guard that provides added protection during operation. These safety measures contribute to a secure working environment, reducing the risk of accidents or injury.
The GDM 121 incorporates innovative cooling mechanisms to maintain optimal performance during prolonged cutting sessions. It features air vents that prevent overheating and ensure continuous airflow around the motor and gearbox, extending the tool’s lifespan and reliability.
Durability is another hallmark of the GDM 121. It is constructed with high-quality materials and engineered to withstand the rigors of daily use in construction, renovation, and fabrication projects. The cutter’s sturdy housing and reinforced components provide durability and reliability, ensuring consistent performance over time.
In summary, the Bosch GDM 121 4″ Concrete and Marble Cutter is a versatile and robust tool that combines powerful cutting capabilities with ergonomic design and safety features. Whether for professional applications in construction sites or DIY projects at home, this cutter offers precision, efficiency, and durability, making it an essential addition to any toolkit where precise cutting of hard materials is required.





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