Grit type is either aluminum oxide (white, pink, ruby red, brown, grey, etc.) silicon carbide (black or green), ceramic (blue and pink) or any combination of these. Grit types are sometimes mixed in combination for achieving certain cutting characteristics.  Aluminum oxide is friable (white) or semi-friable (pink, brown and grey, red,

According to the FEPA, the bulk density of an abrasive is the quotient of the mass and the volume a grain type poured out in a particular manner will occupy. The bulk density, also called bulk weight, is stated in g/cm3. The rounder the particles, the higher the packing density,

This is a hard question to answer in a short space.  While the markings mean the wheels should perform the same, differences in factory equipment and marking systems may make one product behave differently than another.  They should be close, but the only true way to match a product is

A typical grinding wheel specification consists of the grit type, the grit size, the hardness, the structure and the bond.  A typical grinding wheel specification would be A60-I10-VS.  ‘A’ is the grit type (aluminum oxide), ’60’ is the grit size, ‘I’ is the relative hardness, ’10’ is the structure, and

The best way to have abrasive products retain maximum performance and work life is to store them properly. The bonding and backing materials used in abrasives are very sensitive to changes in temperature and humidity. Abrasives are best stored at temperature levels of 60 to 80 degrees Farenheit and a