RUBI Diamond Tapered Reamer 2-35mm

Tile setters and stone fabricators often need to enlarge or refine holes in hard materials like porcelain or granite, and the RUBI Diamond Tapered Reamer 2-35mm is the tool they reach for. Its conical diamond-coated shaft smoothly widens openings from 2 to 35 mm, making it ideal for adjusting pipe cutouts or creating custom shapes in ceramic, stoneware, marble, and natural stone. Use it with water for a clean, controlled cut and extended tool life.

Key specifications

• Working diameter range: 2–35 mm
• Abrasive: high-quality electroplated diamond
• Application: enlarging, shaping, and finishing holes
• Recommended use: wet cutting (with water)
• Compatible materials: ceramic, porcelain, stoneware, marble, granite, natural stone
• Operation mode: manual
• Shaft type: tapered conical
• Handle: ergonomic plastic/rubber grip
• Overall length: approx. 180 mm

Why choose it

This reamer delivers high wear resistance and precision, allowing you to fine-tune existing holes without switching to multiple bits. The diamond coating ensures consistent performance on the hardest tiles, while the ergonomic handle reduces hand fatigue during repetitive work. It is a durable addition to any professional tile or stone toolkit.

Ideal use cases

• Enlarging holes for plumbing fixtures in porcelain or ceramic tiles
• Shaping and smoothing cutouts in stone countertops
• Adjusting diameters for electrical boxes in wall tiles
• Creating custom openings in glass mosaic or marble

Good to know

Always use water as a coolant to prevent overheating and maximize tool life. The tapered design works best with a steady, rotating motion. For optimal results, start with a pilot hole and gradually increase the diameter. Store the reamer in a dry place to protect the diamond coating.