Coated cutting tool

A coated cutting tool, comprising:

• a substrate;
• and
• a coating layer formed on a surface of the substrate, wherein
• the coating layer includes a lower layer and an upper layer in this order from the substrate side toward the surface side of the coating layer, and the upper layer is formed on a surface of the lower layer,
• the lower layer contains a compound having a composition represented by the following Formula (1)
• (AlxTi1-x)N (1)
• where, in Formula (1), x represents an atomic ratio of an Al element as to a sum of the Al element and a Ti element, and 0.70≤x≤0.90 is satisfied,
• an average thickness of the lower layer is 1.0 μm or more and 15.0 μm or less,
• the upper layer contains an α-Al2O3 layer containing α-Al2O3,
• an average thickness of the upper layer is 0.5 μm or more and 15.0 μm or less, and
• in the α-Al2O3 layer, a texture coefficient TC (1, 1, 6) of a (1, 1, 6) plane represented by the following Formula (2) is 2.0 or more and 6.0 or less
• TC
• ⁢
• (
• 1
• ,
• 1
• ,
• 6
• )
• =
• I
• ⁡
• (
• 1
• ,
• 1
• ,
• 6
• )
• I
• 0
• (
• 1
• ,
• 1
• ,
• 6
• )
• ⁢
• {
• 1
• 9
• ⁢
• ∑
• I
• ⁡
• (
• h
• ,
• k
• ,
• l
• )
• I
• 0
• (
• h
• ,
• k
• ,
• l
• )
• }
• -
• 1
• (
• 2
• )
• where, in Formula (2), I(h, k, l) represents peak intensity of (h, k, l) planes in X-ray diffraction of the α-Al2O3 layer, I0(h, k, l) represents standard diffraction intensity of (h, k, l) planes of α-Al2O3 according to JCPDS Card No. 10-0173, and (h, k, l) represents nine crystal planes of (0, 1, 2), (1, 0, 4), (1, 1, 3), (0, 2, 4), (1, 1, 6), (1, 2, 4), (3, 0, 0), (0, 0, 12), and (0, 2, 10).