Abstract: Successively finished drills or other tools are ejected from a chuck into successive angularly spaced openings in a rotary turret, mounted on a carriage with a power device for reciprocating the turret into and out of an unloading position. A ratchet wheel on the turret is indexed through successive detented positions by engagement of the ratchet wheel with a pawl, as an incident to the reciprocating movement. The pawl is mounted on a stationary pivot and is biased into the path of the reciprocating ratchet wheel.

Abstract: The disclosed machine comprises holding means for holding a drill or other similar tool to be ground, first and second drive means for producing translatory movement of the holding means along rectangularly related directions, third drive means for producing the rotation of the holding means, a plurality of grinding units including grinding motors and wheels for grinding the tool, respective additional drive means for causing feeding movement of the grinding motors to bring the wheels into grinding engagement with the tool, swivel means for swiveling the holding means to present the tool to the respective grinding units, a keyboard for entering numerical dimensional values and parameters for controlling the drive means, a TV tube for displaying the values and parameters, a memory for storing the values and parameters, means for bringing up a series of questionnaire pages on the TV tube to prompt the operator to enter all of the dimensional values and parameters to program the machine, the questionnaires havin