To provide a cutting tool comprising a sintered cermet having high strength small deformation by firing.
A cermet sintered body 6 that the hard phase 11 in which the first hard phase 12 consists of two types of second hard phase 13, the bonding phase 14 comprising at least one of Co and Ni, becomes consist inside the rake face 2 side of the surface of the above 400μm thickness depth of, sigma ₁₁ direction of residual stress sigma ₁₁ of the first hard phase 12 [1i] is 80MPa or more compressive stress measured by 2D method (sigma ₁₁ [ 1i] ≦ -80MPa), 50MPa from -50MPa with sigma ₁₁ direction of residual stress sigma ₁₁ [2i] is compressive or tensile stress of the second hard phase 13 (sigma ₁₁ [2i] = - is 50M~50MPa), and binder phase 14 of the sigma ₁₁ direction of residual stress sigma ₁₁ [bi] is 50MPa -50 in compressive or tensile stress (sigma ₁₁ [bi] = - 50M~50MPa) is a cutting tool 1.
.FIELD 1