Diamond glass and ceramic drill bit Irwin cylindrical 6 mm (10507893)

Irwin diamond cylindrical drill bit 6 mm is designed for drilling glass and glazed ceramics with precision. The diamond-coated cutting tip enables clean penetration of brittle materials while the smooth cylindrical shank ensures secure holding in standard chucks. This drill bit is suitable for use in handheld drills and drill presses when accurate round holes are required in materials such as glass panes, ceramic tiles, mirrors and sanitary fixtures.

Advantages

The diamond coating on the cutting tip delivers enhanced hardness and wear resistance for consistent cutting performance on brittle surfaces. The cylindrical shank provides stable grip and reduced slippage in common drill chucks. The 6 mm diameter offers a balance between hole size and control for typical glazing and tiling applications, producing neat edges and minimizing cracking when used with appropriate technique and cooling.

Suitable for

• Drilling holes in glass panes and mirrors
• Creating openings in glazed ceramic tiles
• Installing fixtures and fittings in bathroom and kitchen ceramics
• Precision drilling in brittle construction materials requiring round holes

Key specifications

• Drill tip: diamond-coated for cutting brittle materials
• Shank type: cylindrical for standard chuck compatibility
• Diameter: 6 mm
• Suitable tools: handheld electric drills and drill presses
• Intended materials: glass, glazed ceramics, mirrors, tiles

How to use

Mark the drilling position and secure the workpiece to prevent movement. Begin drilling at low speed, applying light, steady pressure to avoid cracking; maintain drill alignment perpendicular to the surface. For best results, use a backing piece (such as scrap wood) beneath tiles or glass to reduce chipping. Intermittent drilling with pauses and the use of water as a coolant will prolong the tool life and help prevent overheating. After completing the hole, clean the edges with a fine abrasive if necessary.

Usage recommendations

Use low to medium drilling speed and light pressure; keep the drilling area cooled with water when working on glass or glazed ceramics. Secure the workpiece and use a steady, perpendicular motion to reduce the risk of cracking. Replace the bit if cutting performance declines significantly.