THROWAWAY TIP AND TIP MOUNTING SEAT

摘要

PROBLEM TO BE SOLVED: To provide a throwaway tip capable of reducing a cost by dispensing with a grinding work of an undersurface. SOLUTION: A concave part 6 for fitting at a bottom part of the throwaway tip T is made by inclining the undersurface 2 at an angle ofαin an direction to reduce a tip thickness gradually as it is detached from an outer peripheral surface, and by taper-fitting the concave part into a convex part 12 set at a tip mounting seat, the tip T is seated at a holding tool.