Apparatus for profiling an abrasive millstone

An apparatus for profiling, truing and dressing a millstone comprising a fixed head mounted in operational relationship with a grinder, said head having a housing and a cylinder rotatable about an axis within said housing, said cylinder being provided with a plurality of seats each of which contains a feed member on which is secured a cutting tool, means for rotating incrementally said cylinder such that a desired cutting tool is positioned proximate to a profiling, truing and dressing station, means for locking said cylinder in position at said station, means for moving said feed members within said seats such that a desired cutting tool is displaced from a retracted position to an extended position in contact with said millstone, and means for clamping said cutting tool in order to secure it into position with respect to said millstone.