A coated cemented carbide cutting tool member having excellent ability to
prevent breakage and chipping around its cutting edge, exhibits high wear
resistance in severe cutting operations comprises a hard sintered
substrate and a hard coating layer deposited on the surface of said
substrate, the hard coating layer comprises an alternated multi-layer
structure having a total thickness of between 0.5 to 20 .mu.m and
comprising the first thin layer of titanium compounds and the second thin
layer of hard oxide materials whose individual thickness is between 0.01
to 0.3 .mu.m.
