Diamond hole saw GRAPHITE 68x8x75 mm, model 57H876

Diamond hole saw GRAPHITE 68x8x75 mm, model 57H876 is a circular cutting tool with industrial diamond grit designed to drill precise 68 mm diameter holes in hard materials. With an outer diameter of 68 mm, a cutting depth of 8 mm and an overall length of 75 mm, this hole saw is intended for wet drilling and for tasks that require accurate, clean holes in ceramic, porcelain, tile and natural or engineered stone. The product is supplied by GRAPHITE and is suitable for use with compatible core drill adapters and standard drill guides.

Advantages

The diamond abrasive edge provides efficient cutting performance and extended lifetime when used with appropriate cooling. Its 8 mm cutting depth allows for controlled core extraction while the 75 mm overall length provides clearance and compatibility with a range of drill chucks and adapters. The design reduces chipping on fragile surfaces and produces clean, round holes suitable for installation of pipes, fittings and fixtures. The tool is optimized for wet drilling to maintain cutting efficiency and to reduce dust and thermal damage.

Suitable for

• Drilling holes for plumbing and installation in ceramic tiles and porcelain
• Creating openings for electrical boxes and conduits in tiled walls
• Installing fixtures or anchors in natural and engineered stone surfaces
• Renovation and construction tasks requiring precise circular holes in hard tiles

Key specifications

• Outer diameter: 68 mm
• Cutting depth: 8 mm
• Overall length: 75 mm
• Abrasive: diamond grit cutting edge
• Recommended drilling method: wet drilling
• Intended materials: ceramic, porcelain, tile, natural and engineered stone

How to use

Secure the diamond hole saw to a compatible arbor or drill adapter and mount it in a suitable power drill or core drilling rig. Mark the centre point of the hole on the workpiece. Begin drilling at low speed to establish the pilot and then apply steady pressure while maintaining coolant flow or a constant water supply for wet drilling. Avoid excessive lateral force and overheating; allow the tool to cut at its own pace. Periodically withdraw the core to remove debris and inspect the cutting edge. After completing the cut, stop the drill and remove the core carefully.

Usage recommendations

Use constant water cooling during operation to prolong tool life and reduce dust. For best results on fragile tiles or porcelain, start drilling with a low-speed, steady approach and use a drill guide to minimize wandering. Replace the hole saw when cutting performance declines or when the diamond layer is visibly worn.