Rootmaster Blade Diameter: 300mm(12") Bore: 25.4/20mm Kerf/Plate: 5.5mm/3mm Teeth: 10T Max Speed: 6,000RPM Designed for CUTTING Wood(Hardwoods, Inground Roots, Logs and Sleepers) Small Trenches for pipes in the ground EXTREME performance The Austsaw Rootmaster cutting blade is ideal for landscape gardeners, fencing contractors, farmers and green keepers. The Rootmaster produces the best results when cutting in and around dirt and soil. Purchase the Austsaw Rootmaster circular saw blade and you will experience extreme cutting performance! For use with Demo Saws Can be resharpened Unit of Measure: ea