*Cobalt-alloyed bi-metal hole saw*  Bi-metal hole saw with variable toothing for universal application in particular for metals. Long service life is reached thanks to cobalt-alloyed cutting teeth.   **Top Features**  * Particularly suitable for processing metals. * Vario toothing for quick sawing progress. * Cobalt-alloyed cutting teeth for long service life. * UNF thread for quick hole saw exchange  **Advantages**  * Long service life through 8% cobalt-alloyed cutting teeth. * Quick sawing progress through variable toothing with 4-6 teeth per inch. * Creation of precision holes up to 38 mm cutting depth in various materials. * UNF thread for quick hole saw exchange. * Positive tooth angle for low-vibration sawing.  **Functioning**  * The impact of the machine must be deactivated.