BORING HEAD Russian patent published in 2001 - IPC

FIELD: metal working, namely finish working of openings. SUBSTANCE: boring head includes cutter holder with seat for cutting members and with threaded surface, dial, ring, resilient member for taking off plays and body mounted in mandrel and fixed in it. In order to realize enlarged manufacturing possibilities boring head is provided with pusher in the form of screw joined with threaded surface of cutter holder; dial is in the form of cone with threaded stem. Pusher is designed for engaging with cone, threaded stem - for engaging with mandrel. It is possible to make additional scale on body and reading mark - on generatrix of cutter holder. Threaded surface may be arranged in opening on end of cutter holder. EFFECT: improved design providing enlarged manufacturing possibilities of boring head. 3 cl, 8 dwg