Drill bit for glass and glaze GRAPHITE 10 mm diamond cylindrical 57H280

Diamond cylindrical drill bit GRAPHITE 10 mm is designed for drilling precise holes in glass, glazed ceramics and similar brittle materials. The 10 mm diameter and diamond-coated cylindrical tip provide accurate cutting with reduced chipping when used with appropriate drilling technique. Intended for use at low to medium speeds and with water cooling to extend tool life and maintain hole quality.

Advantages

The diamond coating on the cylindrical head ensures high hardness and wear resistance, enabling consistent performance when working with glass and glazed surfaces. The 10 mm size gives a balance between hole precision and cutting stability, while the cylindrical shape supports straight, controlled drilling. When used with coolant and moderate speed settings, the bit produces clean edges and reduces the risk of cracking.

Suitable for

• Drilling holes in glass panes and mirrors
• Creating openings in glazed ceramic tiles and sanitaryware
• Installing fittings that require precise round holes in brittle surfaces
• Repairing glazing and tile fixtures where controlled material removal is needed

Key specifications

• Cutting material: diamond-coated cylindrical tip
• Shank type: cylindrical
• Nominal diameter: 10 mm
• Recommended speed: low to medium RPM
• Cooling: water cooling recommended
• Primary application materials: glass, glazed ceramics, tiles

How to use

Secure the workpiece to prevent movement and mark the drilling point. Use a drill or drill press with a steady, low to medium rotational speed. Apply water continuously to the drilling area to cool the diamond tip and remove debris; a gentle downward pressure and avoidance of sudden lateral forces will reduce chipping. For best results, start with a shallow pilot notch or use a guide to stabilize the bit on smooth surfaces, then proceed gradually until the hole is complete.

Usage recommendations

Use appropriate eye protection and gloves. Maintain continuous water flow during drilling to preserve the diamond coating and prevent overheating. Avoid excessive feed force and high RPMs to limit the risk of cracking fragile materials. Inspect the bit for wear before use and replace when cutting performance declines.