Patent ID: 6990878

Claim:
A metal working machine for reboring or refacing a workpiece comprising, in combination: (a) an elongated, boring bar member; (b) first and second mounting brackets attachable to the workpiece at longitudinally spaced locations therealong, each said mounting bracket including bearings in which the boring bar member is journaled for rotation; (c) an annular cutting head member disposed about the boring bar member and rotatable therewith, the annular cutting head member having a slide supporting a tool bit that is adapted to be moved in a radial direction with respect to the boring bar member's longitudinal axis; (d) a first drive means adapted to be coupled to the boring bar member for rotating the boring bar member and the cutting head member about the longitudinal axis of the boring bar member; (e) a second drive means including an elongated lead screw coupled to said cutting head member for longitudinally translating the cutting head member axially along the boring bar member; and (f) a control device operatively coupled to the elongated lead screw, the control device having a manually adjustable control shaft which when turned in a first direction inhibits axial movement of the cutting head member and imparts radial displacement to the slide and tool bit.