• 2.35mm Shank (3/32")
• Diamond burrs for stone carving and glass engraving, shaping and grinding
• For use on all hard materials such as glass, stone, hardwood, ceramics, shell
• Slow drill speed, 5,000RPM, not exceeding 12,000RPM
• Use plenty of cold water
• Use with low pressure, let the drill do the work
• Use in a handheld drill, hobby drill with the correct collet or adjustable chuck, pendant motor, micro motor or drill press

If you're looking to carve metal, antler or wood, try our small carbide ball burrs, also on a 2.35mm shank.

Please note, some people choose a diamond ball burr to drill holes with; however, they are not designed for this purpose and you will find that a Small Diamond Drill Bit or a Small Diamond Core Drill is more suitable for the task.

Always wear sufficient safety goggles and a face mask and be careful not to exceed a drill speed of 12,000rpm and use with very little to no pressure.

" The 0.8mm burs you sent me are absolutely perfect for my needs.I am absolutely totally 100% delighted with the product. I haven't been this excited since 1976 lol!" - Carl Meigh" 

"Your products make a huge difference to my work. I am a big fan and want to let everyone know just how important you are to the glass engraving industry" - Margot May Designs

Disclaimer. Using rotary tools near water has never been, to the best of our knowledge, endorsed by any of the rotary tool manufacturers. If you do choose to drill near water or with attachments under water connected to your drill then you do so at your own risk. Please be aware that mixing electricity and water can be very dangerous.