4-1/2 x 7/8 C16 POWERFLEX Semi Flexible Disc

?ò Specially designed for grinding and finishing concrete, stone, hard building materials and fiberglass ?ò Made from extremely sharp silicon carbide grains for fast cutting and long wheel life ?ò Manufactured by attaching multiple layers of silicone carbide to a semi-flexible fibre backing ?ò Spiral grooves in the abrasive coating provides quick clearing of ground-off stock ?ò Multiple cooling holes reduce the build-up of heat during grinding operations, greatly extending the life of the disc ?ò The type 29 convex profile helps prevent gouging of the work piece and reduces operator fatigue by making it easier to maintain correct grinding angle ?ò Mount to angle grinders using standard resin fibre disc back-up pads and nuts