Patent ID: 7384329

Claim:
An abrasive grinding tool comprising: a grinding wheel having an annular grinding face depending from a substantially circular body; said body configured for being operably engaged by a machine spindle for rotation about a central axis; said body having a tubular innermost wall defining an axial bore configured to convey coolant in a downstream direction therethrough from a proximal end to a distal end thereof; said innermost wall coupled to a concave body portion terminating at an inner periphery of the annular grinding face; a flange disposed within the concave body portion, in superposed orientation therewith; said flange having an outer periphery disposed within about 20 mm of the inner periphery of said grinding face; said flange and said concave body portion defining a fluid flow passage therebetween, the fluid flow passage being in fluid communication with said axial bore and with said grinding face; said fluid flow passage having a minimum transverse cross-sectional area less than or equal to about 300 percent that of said bore; wherein during operable rotation of the grinding wheel, coolant flowing downstream through the bore is conveyed radially outward into said fluid flow passage for delivery to the grinding face.