Diamond hole saw Expert+ 68 mm with M14 shank, max 12,000 rpm

Diamond hole saw Expert+ 68 mm with M14 shank and maximum rotational speed of 12,000 rpm is a single-piece cutting tool designed for drilling accurate circular openings in hard, brittle materials. It is intended for use with angle grinders and rotary tools that accept M14 fittings and provides abrasion-resistant cutting for tasks that require clean edge finishing and reliable durability.

Advantages

The hole saw features a diamond cutting edge that ensures efficient material removal and extended life when working with ceramic, tile, porcelain and natural stone. Its single-piece construction reduces vibration and improves concentricity for precise hole geometry. The M14 shank allows direct mounting on compatible angle grinders and many rotary tools, eliminating the need for additional adapters. The tool is rated for up to 12,000 rpm, enabling fast cutting speeds when used within the recommended limits.

Suitable for

• Drilling holes in ceramic tiles and porcelain for plumbing and electrical fittings
• Creating openings in natural stone and engineered stone surfaces
• Preparing precise circular cutouts for fixtures, vents and pipe penetrations
• Professional and DIY renovation tasks requiring durable, abrasion-resistant cutting

Key specifications

• Cutting diameter: 68 mm
• Shank type: M14 threaded shank for direct mounting on compatible angle grinders
• Maximum rotational speed: 12,000 rpm
• Construction: single-piece diamond-segment design for reduced vibration
• Application materials: ceramic, tile, porcelain, natural stone and similar hard, brittle materials

How to use

Mark the centre of the desired hole on the workpiece and secure the material to prevent movement. Mount the hole saw onto an angle grinder or rotary tool with an M14 fitting, ensuring the tool is switched off during installation. Start at low speed to establish the cutting position and apply light, even pressure; maintain coolant or periodic water feed if recommended for the chosen material to reduce heat and dust. Increase speed gradually up to the rated maximum if required, and avoid excessive lateral force to preserve hole geometry and prolong tool life. After completing the cut, allow the diamond segments to cool before removing and storing the tool.

Usage recommendations

Use water as a coolant when drilling dense or heat-sensitive materials to extend diamond segment life and reduce dust. Wear appropriate eye, respiratory and hand protection, and follow the angle grinder or rotary tool manufacturer’s safety instructions. For best results, practice on a scrap piece to set feed rate and rotational speed before working on the final surface.