Using abrasive tools such as abrasive stones or diamond hand pads to clean and smooth fused glass is a necessary part of the cold working process.
Rough edges can be present after cutting and may need to be cleaned up before glass fusing. Rather than using a grinder there are a number of simple tools that can be used for this.
The following tools are light weight and easily handled. Stain glass artists also use thes tools quite extensively.
ABRASIVE STONE. This is a stone, which resembles a file with teeth running across the face of the stone,it is approximately 10 inches long. It is used like a file to remove rough spots and smooth the edges of your glass pieces.
After prolonged use these stones begin to wear out as grooves appear in the stone. Once this occurs throw away and buy another one.