Diamond Core Bit 30 mm, INDIAN PROFESSIONAL KORONA DIAMENTOWA M14 — dry drilling, M14 thread

Diamond Core Bit 30 mm from INDIAN PROFESSIONAL is a 30 mm diameter diamond-tipped core bit made for dry drilling. It features an M14 threaded connection compatible with many rotary tools and angle grinders. The diamond segment cutting edge is designed to cut through hard surfaces such as ceramic tiles, porcelain and similar brittle materials commonly encountered during installation and renovation work.

Advantages

The tool provides fast and precise hole cutting in hard tiles and porcelain thanks to the diamond cutting edge and compact 30 mm diameter. The M14 thread ensures quick mounting on compatible devices without additional adapters. Dry drilling capability removes the need for a water supply on many jobsites, simplifying use in confined or retrofit situations.

Suitable for

• Drilling holes in ceramic and porcelain tiles
• Creating openings for fixtures in bathrooms and kitchens
• Tile installation and renovation work
• Small-scale contractors and professional installers

Key specifications

• Diameter: 30 mm
• Connection: M14 threaded shank
• Cutting edge: diamond segments for hard, brittle materials
• Drilling mode: dry drilling
• Typical applications: tile, ceramic, porcelain and similar surfaces

How to use

Select a compatible rotary tool or angle grinder with an M14 thread and secure the core bit by tightening the connection according to the tool manufacturer’s instructions. Mark the drilling point on the tile, start the tool at low speed to establish a guide, and then increase speed while applying steady, moderate pressure. Keep the bit perpendicular to the surface and withdraw periodically as needed to clear debris. Avoid excessive force and prolonged continuous contact to reduce overheating when dry drilling.

Usage recommendations

For best results when dry drilling, use moderate speeds, short drilling intervals and allow the bit to cool between passes. Support tiles firmly to prevent cracking and use protective equipment such as safety glasses and gloves.