Tool setting gage

A tool setting gage for ascertaining the radial and axial position of an element of a tool comprising:

• a base member having means for mounting said tool thereon to extend vertically above said base member;
• a first pair of spaced, parallel, horizontal rails affixed to said base member;
• a first carriage mounted on said first rails for movement toward and away from the tool mounting means normal to the extension of the tool;
• a horizontal lead screw rotatably journalled on said base member intermediate said first rails;
• a first nut mechanism mounted on said first carriage and selectively engageable with said horizontal lead screw for providing fine adjustment movement of said first carriage with respect to said tool mounting means and for retaining the first carriage in position on said first pair of rails;
• a second pair of spaced, parallel, vertical rails affixed to said first carriage;
• a second carriage mounted on said second rails for movement up and down along the extension of the tool;
• a vertical lead screw rotatably journalled in said first carriage;
• a second nut mechanism mounted on said second carriage and selectively engageable with said second lead screw for providing fine adjustment movement of said second carriage with respect to said tool mounting means and for retaining the second carriage in position on said second pair of rails;
• a feeler mounted on said second carriage for contacting the tool element responsive to movement of said first and second carriages;
• transducer means for ascertaining the movement of said carriages;
• and
• digital readout means coupled to said transducer means for indicating the position of said feeler.