Diamond Core Bit Montolit IP7703 M14 10 mm — dry drilling, professional series

The Montolit IP7703 M14 10 mm diamond core bit is designed for dry drilling in hard materials using rotary tools and angle grinders with an M14 shank. Part of Montolit's Indian Professional series, this compact core bit provides a 10 mm cutting diameter for precise small-diameter holes commonly required in trades and renovation work. The bit's diamond cutting edge is optimized for abrasion resistance and fast penetration during dry operation, reducing the need for frequent bit changes when working on ceramic, porcelain, stone and similar dense substrates.

Advantages

The Montolit IP7703 delivers consistent hole quality with a 10 mm diameter and an M14 thread that fits a wide range of grinders and rotary tools. Its diamond-impregnated cutting edge offers longevity under dry working conditions and precise guidance to minimize chipping in brittle materials. The compact design supports controlled drilling in confined spaces and for tasks requiring multiple small holes.

Suitable for

• Drilling 10 mm holes in ceramic and porcelain tiles
• Creating small holes in natural and engineered stone
• Making guide or pilot holes for plumbing and electrical fixtures during renovation
• Use with angle grinders and rotary tools equipped with M14 shanks

Key specifications

• Cutting diameter: 10 mm
• Mount type: M14 threaded shank compatible with angle grinders and many rotary tools
• Operation: dry drilling
• Series: professional line optimized for trade and renovation tasks
• Intended materials: ceramic, porcelain, natural stone and similar dense substrates

How to use

Secure the core bit in a compatible tool with an M14 thread and ensure the tool is correctly tightened before starting. Mark the drilling point and start at low speed to establish the hole position, then increase speed as needed while maintaining steady, moderate pressure. Because this bit is designed for dry drilling, avoid using water; instead, allow periodic pauses to prevent overheating during prolonged use. Use appropriate personal protective equipment such as safety glasses, dust mask and hearing protection.

Usage recommendations

For best results, begin drilling on a sacrificial backing or use a guide to prevent slipping on smooth surfaces. When working on particularly hard or brittle materials, use short drilling intervals and let the bit cool between passes to extend tool life.