- Country of manufactureUkraine
Development - the cutting tool which is necessary for final processing of openings after drilling, a coredrilling or boring. Expansion reaches accuracy to 6-9 kvalitet and a roughness of a surface to Ra = 0,32 … 1,25 microns.
High quality of processing is provided that development has a large number of the cutting edges (4-14) and removes a small allowance. Development performs work at the rotation and simultaneous progress along an opening axis. Development allows to remove a thin layer of material (tenth-hundredth shares of millimeter) with high precision. Besides cylindrical openings develop conic openings (for example under tool cones) special conic development.