bike rim resurfacing

Step 4 Cut your stone to desired size

Never force the tool, let the tool do the work, excess pressure is not necessary and will wear down your tools prematurely...The ideal speed for this is somewhere around 20,000 rpm, but you can cut at full speed if your rotary tool is not of the adjustable type. Do not cut in one place, just keep recutting the same groove over and over. As soon as the stone starts to dry around the cutting area, dip it again....beware the initial water spray as this will contain some of the slate particles which will be very unfriendly to the eye socket mechanism, hence the need for safety glasses at all times....

In this example I cut a small stone..I have cut larger stones for other purposes, but this is to give you the general idea...