Shaft mounted flap wheels can be used in portable air or electric power tools, including tyre buffers, flexible shafts and hand drills. Manufactured from highest quality industrial cloth. Used for a wide range of applications such as removal of rust, cleaning up welds and sanding wood prior to painting. Recessed hub design for access in tight corners. 8 Piece Set Contents: 30 x 15mm: P60, 30 x 15mm: P120, 40 x 15mm: P60, 40 x 15mm: P120, 50 x 20mm: P80, 50 x 25mm: P60, 60 x 30mm: P40, 60 x 30mm: P80.