- The drills are made by profile grinding, have a slightly enlarged core, which allows the tool to withstand significant loads when drilling difficult-to-machine materials
- The transverse cutting edge has been removed with an undercut, which facilitates the drilling process; also, thanks to the undercut, the need for significant physical effort during work is reduced
- These drills are made of cobalt steel, which gives the tool extra hardness and heat resistance
- This tool has increased requirements for accuracy and workmanship, therefore drills are suitable for professional use
- Sharpening: 135 hail
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