SET OF CUTTING INSTRUMENTS (ALTERNATIVES) Russian patent published in 2008 - IPC B23B51/02 B23C5/10 B23C5/20 

FIELD: construction.

SUBSTANCE: instrument consists of casing and cutting blade, installed in the groove of the casing, which is fixed perpendicular to its longitudinal axis, with an axis of symmetry, coinciding when installed into the groove of the casing with its longitudinal axis of symmetry. The instrument also consists of end to end cavity and symmetrical base in contact with the bottom of the groove on the casing, two frontal front surfaces, a rear surface and two support surfaces in contact with the side walls of the casing. To increase effectiveness of handling due to the small diameter, the instrument is equipped with a filling plate made from an elastic or heat conducting material, put in the groove of the cutting blade. The cutting blade is made with two projections, symmetrically located relative the axis of the cutting blade on the surfaces lying opposite the front surfaces. On the casing, there are two extra grooves for accommodating the mentioned projections of the cutting blade and two elastic walls in contact with bevelled planes on the projections of the blade. To align the cutting blade in the given extra grooves of the casing, there are flat walls in contact with plain parts of the side surfaces of the cavity, bordered by the given projections of the cutting blade. The groove of the cutting blade is made with an outlet on its base.

EFFECT: increased effectiveness.

2 cl, 7 dwg