The innovative ALUMASTER High Speed Disc is a unique product with an extremely high stock removal rate. It is ideal for processing aluminium as it does not generate hazardous or explosive dust. It consists of specially developed tungsten carbide cutting inserts, which are fixed to the High Speed Disc. WIHA torque spanner with a tightening torque of 35.4 in-lbs. (4 Nm) for optimally and securely mounting cutting inserts on the ALUMASTER High Speed Disc.