Rubi Dry Cut Diamond Drill Bit 04910

This diamond drill bit is designed for dry drilling in ceramic, porcelain, natural stone, marble, granite, and other hard materials. It offers high precision and durability for both professional and DIY use, and is compatible with standard grinders and rotary tools. The bit features vacuum brazed welding for high heat resistance and, in smaller sizes (6–12 mm), internal wax cooling for automatic cooling during use. A side opening on larger diameters (20–75 mm) improves cooling and debris removal. Diameters range from 6 mm to 75 mm, with a maximum operating speed of 14,000 rpm and an M14 thread. It is supplied in a blister pack and requires no additional accessories, though the bit should be mounted securely to the grinder or rotary tool for optimal performance.

Features

• Dry drilling for ceramic, porcelain, natural stone
• Vacuum brazed welding for high heat resistance
• Compatible with standard grinders and rotary tools
• Wax cooling inside 6–12 mm sizes for automatic cooling
• Side openings on 20–75 mm for better cooling and debris removal

Technical specifications

• Diameter range: 6 mm to 75 mm
• Maximum speed: 14,000 rpm
• Thread: M14
• Materials recommended: ceramic, porcelain, marble, granite, natural stone
• Construction: vacuum brazed diamond drill bit
• Packaging: blister pack