Solid Carbide rasp/burr. Coarse cut. For grinding carving and shaping of glass reinforced plastics (GRP). Not suitable for plunge cutting. Use at speed 10000 -30000 RPM. Specifications: • Shank Diameter: 1/4 • Dia Metric: 6.3 • Dia Imperial: 1/4 • Cut Length Metric: 20 • Overall Length Metric: 51