Drill bit set RUBI Easy Gres Plus Kit — 7 pcs diamond drill bits, 27 mm length, for porcelain, with carrying case

The EASYGRES drill bit kits provide an economical solution for drilling different diameters in any type of ceramic tile. These electroplated diamond drill bits are designed for wet cutting and are intended for use with a non‑percussive power drill. The diamond quality used in EASYGRES drill bits makes them suitable for drilling stoneware, porcelain tiles, granite, marble and glass. RUBI offers several kit configurations adapted to common professional and DIY needs.

Advantages

EASYGRES kits combine simple maintenance and practical accessories: precision centring guides, adhesive mounting systems and water tanks that enable controlled wet drilling. The lateral opening in the drill bit body improves cooling and helps remove solids after each hole. Typical kits range from small‑diameter sets with centring bushes to the PLUS kit with multiple diameters and a carrying case.

Suitable for

• Drilling holes in ceramic tile and porcelain
• Working on stoneware, granite and marble
• Drilling glass (with appropriate cooling)
• Professional tiling and general installation work
• DIY projects requiring precision circular holes

Key specifications

• Brand: RUBI
• Model/MPN: 50937
• EAN: 8413797509373
• Kit type: EASYGRES PLUS Kit, 7 drill bits
• Drill bit lengths: 27 mm (per product data)
• Diameters in PLUS kit (typical set): 20, 28, 35, 43, 50, 68, 75 mm
• Drilling depth: 25 mm
• Recommended drill type: non‑percussive power drill
• Recommended speed: 400–1000 rpm (material dependent)
• Cooling method: wet cutting (water tank and hose)
• Average life: approx. 10 holes (6–12 mm); approx. 25 holes (20–120 mm) — depends on material, thickness and cooling

How to use

Attach the appropriate centring guide or MULTIDRILL guide to the work surface using the adhesive system or mounting accessories supplied. Connect the water tank and hose to ensure continuous wet cooling. Fit the chosen EASYGRES diamond bit into a non‑percussive drill, set the rotation speed between 400 and 1000 rpm according to the material, and apply moderate, steady pressure. After each hole, clear the lateral opening and remove solid residues; ensure the bit is clean before starting the next hole. Respect the maximum drilling depth of 25 mm.

Recommendations

To extend the life of the drill bits and achieve a cleaner finish, maintain proper wet cooling, use moderate pressure, keep rotation speeds within the recommended range and verify that the bit and guide are free of debris before each use.