Serra copo KWB 500308 8mm para cerâmica granito mármore

The KWB 500308 8mm hole saw for ceramic, granite and marble is a single-piece cutting tool designed for precision drilling in hard surfaces. Its 8mm diameter and robust construction provide accurate, clean holes in tile, stone and engineered natural materials. The tool is intended for use with compatible drill chucks and holders and is suitable for tasks that require small-diameter openings where edge chipping must be minimised.

Advantages

This hole saw delivers precise 8mm holes with minimal chipping on ceramic, granite and marble surfaces. The single-piece design improves stability during drilling and reduces vibration. The cutting edge and body are engineered to withstand contact with hard materials, offering consistent performance in repeated use. Its compact diameter makes it appropriate for detailed jobs and for creating pilot or fixture holes without overcutting.

Suitable for

Key specifications

How to use

Mark the drill point on the workpiece and secure the tile or stone to prevent movement. Fit the hole saw into a compatible drill chuck or holder, ensuring it is mounted securely. Start drilling at low speed and, where possible, use water cooling or periodic lubrication to reduce heat and dust. Apply steady, moderate pressure and avoid high lateral force to prevent cracking. Withdraw periodically to clear debris and inspect progress until the required depth is reached.

Recommendations

Use low to moderate rotational speeds and, for best results on ceramic and natural stone, employ continuous water cooling or intermittent wetting to extend tool life and reduce heat-related damage. For brittle tiles, consider backing the tile with a sacrificial support to reduce chipping at the exit point.