4" Rigid backer pad for Montolit PDR polishing pads. Montolit PDR Polishing Pads are made from diamond resin with a strong hook and loop connection to the grinder pad. For wet or dry grinding and polishing of porcelain, granite, marble, glass and natural stone. Use with most angle grinders up to a maximum of 4,000 RPM.
- PDR-0 (Purple) 50/60 Mesh. Removal of material
- PDR-1 (Green) 120/150 Mesh. Intermediate roughing.
- PDR-2 (Red) 400 Mesh. Fine roughing.
- PDR-3 (Blue) 2000 Mesh. Polishing.
