Diamond hole saw set GEKO G65100 — 6-piece, diameters 6–68 mm

GEKO diamond hole saw set G65100 includes six diamond-coated core drills with diameters ranging from 6 mm to 68 mm, designed for creating precise circular openings in hard materials. The set is intended for use with standard drill chucks and is suitable for wet drilling to reduce heat and prolong diamond segment life. It provides controlled cutting on ceramic, porcelain, tiles, glass and natural stone when installing plumbing, electrical fixtures or when fitting and modifying tiled surfaces.

Advantages

The diamond coating delivers consistent cutting performance and a clean edge on brittle and glazed surfaces. A comprehensive range of diameters allows one set to cover small to large hole requirements without changing tool type. Compatibility with standard chucks and the ability to use water cooling make these hole saws practical for both handheld and drill-press applications. The solid construction maintains roundness of holes and reduces chipping when operated at recommended speeds and with cooling.

Suitable for

• Drilling holes for plumbing fixtures in ceramic and porcelain tiles
• Creating openings for electrical outlets and conduits in tiled walls
• Cutting precise holes in glass and mirror panels (with appropriate fixtures)
• Making holes in natural stone, marble and granite for small installations
• Tile fitting, renovation and repair work requiring clean circular cuts

Key specifications

• Set composition: six diamond-coated core drills
• Diameter range: 6 mm, 8 mm, 10 mm, 12 mm, 35 mm, 68 mm
• Cutting edge: diamond-coated segments for hard and brittle materials
• Suitable materials: ceramic, porcelain, tile, glass, natural stone
• Mounting: compatible with standard drill chucks
• Cooling: recommended wet drilling to reduce heat and extend tool life

How to use

Mark the center point of the hole and secure the workpiece to prevent movement. Fit the appropriate diamond core drill into a compatible chuck and set the drill to a moderate speed. Start drilling with light pressure to create an initial groove, and maintain steady, even pressure throughout the cut. Use a continuous water flow or periodic wetting of the cutting area to cool the diamond segments and remove debris. After completing the cut, stop the drill and allow the tool to cool before removing the core.

Usage recommendations

For best results, use a drill with adjustable speed and maintain low to medium rpm for larger diameters. Always secure fragile materials and use water cooling when cutting glazed or heat-sensitive surfaces. Wear appropriate eye protection and gloves, and follow safe handling practices to avoid chipping and prolonged tool wear.