Diamond drill bit Montolit FAJ10 10 mm, wet drilling, model FAJ10

Montolit diamond drill bit FAJ10 10 mm is a wet-drilling accessory designed for precise boreholes in hard and brittle surfaces. The 10 mm diameter cutting head features industrial-grade diamond edges and is intended for use with water cooling to maintain cutting performance and extend tool life. The bit fits tools and core drilling setups that accept 10 mm shanks and is suitable for tile, ceramic, porcelain, glass and other similar materials where controlled, dust-minimised drilling is required.

Advantages

The diamond cutting edge provides efficient penetration into hard surfaces while maintaining a stable hole diameter. Wet drilling with continuous water flow reduces overheating and diamond wear, improving longevity and cutting consistency. The compact 10 mm diameter allows for small, accurate holes without excessive chipping on brittle materials and enables use in confined or detailed installation tasks.

Suitable for

• Drilling holes in ceramic and porcelain tiles for plumbing and fixture installations
• Creating openings in glass and glazed surfaces with water-cooled drilling
• Making precise small-diameter holes for electrical boxes or mounting hardware on tiled surfaces
• Wet drilling in natural and engineered stone where a diamond cutting edge is required

Key specifications

• Cutting diameter: 10 mm
• Cutting material: diamond abrasive edge
• Recommended drilling method: wet drilling with continuous water cooling
• Intended materials: tile, ceramic, porcelain, glass, brittle stone
• Shank compatibility: fits tools accepting 10 mm shanks

How to use

Mount the drill bit in a rotary drill or core drilling rig that accepts 10 mm shanks, ensuring a secure clamping. Use continuous water flow to keep the bit and workpiece cooled; a steady, low-pressure water feed or a drip system is suitable for small-diameter bits. Start drilling at low speed to establish the hole, then maintain moderate speed and light, consistent pressure. Avoid excessive force or high speed, which can cause glazing or premature diamond wear. Withdraw periodically to clear slurry and inspect progress.

Usage recommendations

For best results, use a drill with adjustable speed and a steady water supply. Secure fragile workpieces and consider backing with sacrificial material to reduce chipping. Replace the bit when cutting performance declines or if visible diamond loss is observed.