Abstract: A method for dressing a grinding wheel or the like to provide surfaces with two different radii thereon mounts a cutting tool on a radius and angle dresser with a first oscillatable shaft which in turn supports a second oscillatable shaft which is oscillatable independently of the first shaft. The axis of the second shaft is shifted relative to the axis of the first shaft to position the cutting edge at a selected elevation relative to the axis of rotation of the first shaft; and it is locked in position while the first shaft is oscillated to generate a first radius surface on the wheel. The first shaft is then locked and the second shaft is oscillated to generate a second radius.

Abstract: A radius and angle dresser includes a support member having a first shaft rotatably mounted thereon and a second shaft rotatably mounted at one end of the first shaft. The respective axes of rotation of the shafts are parallel and the second shaft is radially shiftable in two mutually perpendicular directions relative to the first shaft to radially offset the two shafts while keeping them parallel. Locking means are associated with the shafts to enable selective independent rotation of the second shaft or rotation of the second shaft with the first shaft.The apparatus permits the method of generating of different radius surfaces about, respectively, the axes of rotation of the first and second shafts without intervening re-zeroing and re-setting of the device.