HOLE MACHINING TOOL Russian patent published in 1994 - IPC

FIELD: cutting tool. SUBSTANCE: tool has working (cutting) part 1 in which axial longitudinal slot 4 is made, a flexible insert which one part is stationary mounted in slot 4. The other part of the insert extends above cutting part 1 and is made in the form of hemisphere 9 of diameter no more than the diameter of cutting tool 1. Through hole 5 which axis is perpendicular to the axis of slot 4 is made on the end of slot 4 on the side of a shank. At least two diametrically opposed holes for positioning the flexible insert inside are made on the end of cutting part 1. EFFECT: improved structure. 1 dwg