20mm M14 Gold Brazed Diamond Drill Bit

The 20mm M14 Gold Brazed Diamond Drill Bit is designed for high-speed dry drilling of larger holes in hard tile and stone surfaces. Using gold brazed diamond technology, it delivers aggressive cutting performance and excellent durability, making it ideal for professional tilers and installers working with dense porcelain and natural stone.

Fitted with an M14 threaded connection, this drill bit mounts directly onto an angle grinder and operates efficiently at 6000–11000 RPM. Although designed for dry use, intermittent cooling by dipping the bit in water is strongly recommended to extend tool life and maintain cutting efficiency.

An optional adaptor is available to convert the M14 thread for use with standard 3-jaw drill chucks, offering additional flexibility on site.

KEY FEATURES & BENEFITS

• 20mm diameter – ideal for pipe and service penetrations

• Gold brazed diamond cutting edge – fast, aggressive drilling

• M14 thread – direct fit to angle grinders

• Dry drilling design – no constant water supply required

• High RPM capability – 6000–11000 RPM

• Side slots – improved dust removal and cooling

• Adaptor available – compatible with standard drill chucks

TECHNICAL SPECIFICATIONS

• Diameter: 20 mm

• Connection: M14 thread

• Cutting Technology: Gold brazed diamond

• Recommended Tool: Angle grinder

• Max Speed: 6000–11000 RPM

• Cooling: Dry use with periodic water dipping

• Use: Dry drilling only

SUITABLE MATERIALS

• Porcelain tiles

• Marble

• Granite

• Travertine

• Natural stone and dense ceramics