Ostrička vrtákov Holzmann BSG13E 230V stolová na špirálové vrtáky, 230V napájanie

The Holzmann BSG13E 230V bench-mounted drill bit sharpener is a compact grinding tool designed specifically for regrinding twist drills. Installed on a workbench, it provides a fixed, stable platform that helps restore cutting edges and the correct tip geometry of small to medium-sized drill bits. Powered from a 230V mains supply, the unit is intended for use in workshops, maintenance rooms, and production-support environments where quick, repeatable sharpening reduces the need for replacement drill bits and helps maintain drilling precision.

Advantages

The bench-mounted design ensures stable positioning and consistent contact between the grinding wheel and the drill point, improving repeatability compared with handheld methods. The machine focuses on restoring the correct helix and chisel angle of twist drills, which helps reduce heat generation and breakage during subsequent use. Its 230V electric supply and compact footprint make it suitable for standard workshop electrical setups and for placement on a crowded workbench. The unit is optimized for routine regrinding tasks, saving time and lowering tooling costs by extending the service life of existing drill bits.

Suitable for

• Regrinding worn HSS and carbon twist drills
• Small machine shops and maintenance departments
• Routine sharpening tasks to restore tip geometry and cutting edges
• Workbenches where a compact, fixed sharpening station is required

Key specifications

• Bench-mounted construction for secure installation on a workbench
• Designed for twist (spiral) drill bits
• 230V mains electrical operation
• Stable grinding platform to assist precise tip and edge restoration
• Compact footprint for workshop environments

How to use

Secure the sharpener to a stable bench or table and connect it to a compatible 230V power outlet following local electrical safety rules. Select a suitable grinding wheel and ensure it is correctly mounted and balanced. Clamp the drill bit in the machine’s holding fixture or guide, align the bit to the intended tip angle and feed it gently to the grinding wheel while maintaining steady pressure and small incremental movements. Inspect the tip geometry and cutting lips periodically and repeat the pass until the desired edge profile and symmetry are achieved. After grinding, remove any debris and check the bit by performing a test drill at low speed to verify cutting performance.

Recommendations

Use appropriate personal protective equipment, including safety glasses and hearing protection. Allow the grinding wheel to reach operating speed before contacting the drill, and avoid excessive feed rates or long continuous grinding that may overheat the bit. Keep replacement grinding wheels and a small set of dressing tools on hand to maintain wheel condition and consistent results.