CUTTER, PARTICULARLY CUTTER WITH ROUND SHANK Russian patent published in 2014 - IPC E21C35/197 

FIELD: process engineering.

SUBSTANCE: invention relates to cutter, particularly, to cutter with round shank comprising cutter head and cutter shank. Note here that fastening bush is retained in the cutter shank zone while said cutter is equipped with thrust element with guide zone. In compliance with this invention, for ease of cutter handling, said thrust element has deflecting section arranged in its zone opposite the cutter head bottom. Said section adjoins the guide zone to allow fastening bush to change from unlocked position to locked position of from partially locked position to locked position. Note also that guide zone extends through rounded flare to aforesaid thrust surface.

EFFECT: perfected design.

13 cl, 6 dwg