Sharpening Machine Blades and Mill Knives | Precision Grinding .
WEBToday, we operate many of the largest Blanchard Mattison grinders housed within one company in America. Four of our Mattison grinders are for surface grinding machine blades to ± ″ tolerances. Our largest Mattison surface grinder can handle steel parts up to 31″ height x 37″ width x 200″ length. Shear Blades Ground Flat.