- Grit, bonding, abrasive additives as well as reinforcement of the rough grinding discs are optimised for maximum metal removal rate and working life in their respective applications.
- Shapes: Rough grinding discs, depressed centres (shapes 27, 28, 29)
- Grinding angle 20° to 30°
- Application: On electric and pneumatic angle grinders with maximum 80 m/s circumferential speed for grinding welds, surfaces, and edges.
Hard rough grinding disc (hardness R) of the SG for steel high performance range with very high metal removal rate and very long service life.