Surface-coated cutting tool and method of manufacturing the same

A surface-coated cutting tool having a rake face, a flank face, and an edge ridgeline constituting a boundary between the rake face and the flank face,

• the surface-coated cutting tool comprising a base material and a coating formed on the base material,
• the coating including an α-Al2O3 layer containing a plurality of α-Al2O3 crystal grains,
• the α-Al2O3 layer including:
• a first region made up of the edge ridgeline, a region A of the rake face, and a region B of the flank face;
• a second region which is a region of the rake face except for the region A and covered with the coating;
• and
• a third region which is a region of the flank face except for the region B,
• the region A being sandwiched between the edge ridgeline and a virtual line in the rake face, the virtual line passing through a point located 1 mm away from the edge ridgeline and extending along the edge ridgeline,
• the region B being sandwiched between the edge ridgeline and a virtual line in the flank face, the virtual line passing through a point located 1 mm away from the edge ridgeline and extending along the edge ridgeline, and
• the α-Al2O3 layer satisfying a relation b−a>0.5, where a is an average value of a TC(006) in the first region in texture coefficient TC(hkl) and b is an average value of the TC(006) in the second region or the third region in texture coefficient TC(hkl).