Abstract: An apparatus for removing excess material, such as spur bits or sprues, from workpieces, provided with a support surface having a guide channel therein for receiving excess material therein for guiding to a rotatably driven removal tool having a peripheral cutting or grinding segment submerged in a slot in the support surface and which is mounted for selective movements in parallel as well as normal to its rotational axis to allow adjustments to compensate for changes in the size or kind of tool as a result of wear or replacement. While not so limited in its application, the apparatus is of particular use for removing spur bits or sprues from workpieces.