Influence of axial tool geometric parameters dissipation on operation ability of these tools

Values of geometric parameters for the multi-tooth tool cutting edges, are subjected to the dissipation that influences on the operation ability of these tools. The influence of cutting edge angle value dissipation for drills and screw taps, on their mean stability and its dispersion, is analyzed. It is shown that the angle error between the reamer and tap teeth leads to discrepancy of the prescribed orifice dimension. Sources of the angle errors and nature of their impact on discrepancy, are found. Recommendations to normalize tolerance of the axial tool cutting edge geometric parameters, are given.