Diamond Core Drill Bit 5 mm, INDIAN PROFESSIONAL KORONA DIAMENTOWA HEX, dry drilling

Diamond Core Drill Bit 5 mm by INDIAN PROFESSIONAL is a compact cutting tool designed for dry drilling of small circular holes in hard surfaces. The bit uses diamond cutting edges to penetrate materials such as tiles, ceramics and glass with controlled precision. A hex shank provides secure grip in chucks and quick bit changes for handheld drivers and impact drivers that accept hex shanks. The tool is intended for tasks that require small-diameter holes and where coolant or wet drilling is impractical.

Advantages

The diamond cutting edge ensures efficient abrasion and extended wear resistance when used under recommended dry drilling conditions. The 5 mm core size allows precise holemaking for fixtures, anchors and cable pass-throughs without excessive material removal. The hex shank design improves retention in the chuck and speeds up bit replacement during repetitive work. The construction is optimized for small, accurate holes in hard, brittle materials.

Suitable for

• Drilling holes in ceramic and porcelain tiles
• Creating openings in glass and glazed surfaces
• Installing small fixtures and anchors in hard finishes
• Electrical and plumbing pass-throughs requiring 5 mm holes

Key specifications

• Cutting diameter: 5 mm
• Cutting edge material: diamond grit
• Shank type: hex
• Intended drilling mode: dry drilling
• Primary application materials: tile, ceramic, glass and similar hard surfaces

How to use

Mark the drilling position and secure the workpiece to prevent movement. Fit the hex shank into a compatible drill or driver and tighten the chuck. Start at low to moderate speed to establish the cutting action, applying light, steady pressure; avoid excessive force that can chip brittle materials. Periodically withdraw the bit to clear dust and prevent overheating. Use appropriate personal protective equipment such as safety glasses and a dust mask when dry drilling.

Usage recommendations

For best results, employ moderate RPM and gentle feed to reduce chipping and prolong bit life. If available, use a guide or guide bush to maintain perpendicular entry. Allow the bit to cool between prolonged operations and clean the cutting face after use to remove abrasive particles.