The RUBI MINI DRYGRES 4DRILL Kit is the ultimate solution for precision dry drilling in ceramic, porcelain, marble, and granite surfaces. Designed for professional results, this compact kit includes four high-performance diamond drill bits in the most commonly used sizes—Ø1/4", 5/16", 3/8", and 1/2"—all housed in a durable, transparent storage case for easy transport and protection. Featuring advanced VACUUM BRAZED technology, each bit offers superior resistance to heat and friction, while the integrated cooling wax system ensures optimal performance by lubricating the bit during use and helping remove debris. The wax is strategically retained at the tip for consistent efficiency and longer lifespan. Compatible with both corded and cordless drills (without hammer function), the bits also feature a hex shank for secure, quick-fit mounting. Ideal for precision installations of bathroom fixtures and decorative hardware, the RUBI MINI DRYGRES 4DRILL Kit delivers clean, efficient holes with ease and reliability—making it a must-have for tile professionals and serious DIYers alike.
Complete 4-Piece Kit – Includes 4 premium diamond drill bits (1/4-in, 5/16-in, 3/8-in, and 1/2-in) in a durable, transparent case for easy transport and storage
Optimized for Porcelain and Stone – Perfect for dry drilling ceramic tile, porcelain stoneware, marble, and granite
VACUUM BRAZED Technology – Advanced diamond welding increases resistance to heat and friction for longer tool life
Built-in Cooling Wax – Internal wax melts during use to cool the bit and remove debris—no external lubrication required
Anti-Wax Loss Design – Innovative system keeps wax concentrated at the tip for continuous cooling and lubrication
Corded and Cordless Drill Compatible – Hex shank fits standard 10mm (0.39") drill heads—no hammer function needed
Precision Depth Control – Drilling depths of up to 1.57" (40mm), ideal for installing bathroom or décor accessories
Compact and Portable – Packaged in a stylish four-color band case, ideal for protecting the bits and extending product life
Recommended 1000+ RPM Use – Achieve cleaner holes and longer bit life with proper speed and light orbital movement
