A special formulation of resin bonded diamond specifically designed for fast and effective grinding of opals. The removal rate of material is very high, allowing the use of finer grits while grinding opal to either expose the colour or pre-form. Less scratches means less work in the following stages to pre-polish. The edge of the wheel can be used to accurately grind down to thin opal layers. The wheels are balanced, quiet, and durable.
Diameter - 8 inches (200 mm)
Wheel width - 38 mm
Resin bonded diamond section - 6 mm thick
Centre bore hole - 1 inch (25.4mm)
Recommended RPM 1400 rpm
Available grits - 100 grit (heavy stock removal)
200 grit (standard stock removal and pre-forming)
400 grit (fine stock removal and pre-forming)
1000 grit (shape refining and side/back finishing)