A blade of a hair clipper, comprising: a fixed blade; and a movable blade configured to cut hair by reciprocating and sliding with respect to the fixed blade in one direction, wherein the fixed blade comprises a sliding contact surface on which the movable blade is configured to slide, and a skin contact surface configured to come into contact with skin, in a state where the fixed blade is viewed in the one direction, the skin contact surface is inclined with respect to the sliding contact surface in such a manner that a distance between the skin contact surface and the sliding contact surface is decreased toward a distal end side of the fixed blade, the movable blade is configured to be slidable on the sliding contact surface of the fixed blade in an intersecting direction intersecting the one direction, the fixed blade includes a distal end part including a uniform part with a uniform thickness in a thickness direction intersecting the one direction and the intersecting direction, and the fixed blade further comprises: a plurality of fixed blade bars, and a plurality of fixed blade grooves, the plurality of fixed blade bars protrude in the intersecting direction and are arranged side by side in the one direction, each of the plurality of fixed blade grooves is provided between two of the plurality of fixed blade bars included in the plurality of fixed blade bars and adjacent to each other, and each of the plurality of fixed blade grooves differs in width in the one direction between a distal end side and a back side in the intersecting direction, characterized in that the fixed blade is formed such that a sum of a width in the one direction of one of the plurality of fixed blade bars and a width in the one direction of one of the plurality of fixed blade grooves is more than or equal to 0.5 mm and less than or equal to 1.0 mm, and the width in the one direction of the one of the plurality of fixed blade grooves is more than or equal to 0.3 mm. a fixed blade; and a movable blade configured to cut hair by reciprocating and sliding with respect to the fixed blade in one direction, wherein the fixed blade comprises a sliding contact surface on which the movable blade is configured to slide, and a skin contact surface configured to come into contact with skin, in a state where the fixed blade is viewed in the one direction, the skin contact surface is inclined with respect to the sliding contact surface in such a manner that a distance between the skin contact surface and the sliding contact surface is decreased toward a distal end side of the fixed blade, the movable blade is configured to be slidable on the sliding contact surface of the fixed blade in an intersecting direction intersecting the one direction, the fixed blade includes a distal end part including a uniform part with a uniform thickness in a thickness direction intersecting the one direction and the intersecting direction, and the fixed blade further comprises: a plurality of fixed blade bars, and a plurality of fixed blade grooves, the plurality of fixed blade bars protrude in the intersecting direction and are arranged side by side in the one direction, each of the plurality of fixed blade grooves is provided between two of the plurality of fixed blade bars included in the plurality of fixed blade bars and adjacent to each other, and each of the plurality of fixed blade grooves differs in width in the one direction between a distal end side and a back side in the intersecting direction, characterized in that the fixed blade is formed such that a sum of a width in the one direction of one of the plurality of fixed blade bars and a width in the one direction of one of the plurality of fixed blade grooves is more than or equal to 0.5 mm and less than or equal to 1.0 mm, and the width in the one direction of the one of the plurality of fixed blade grooves is more than or equal to 0.3 mm. a plurality of fixed blade bars, and a plurality of fixed blade grooves, the plurality of fixed blade bars protrude in the intersecting direction and are arranged side by side in the one direction, each of the plurality of fixed blade grooves is provided between two of the plurality of fixed blade bars included in the plurality of fixed blade bars and adjacent to each other, and each of the plurality of fixed blade grooves differs in width in the one direction between a distal end side and a back side in the intersecting direction, characterized in that the fixed blade is formed such that a sum of a width in the one direction of one of the plurality of fixed blade bars and a width in the one direction of one of the plurality of fixed blade grooves is more than or equal to 0.5 mm and less than or equal to 1.0 mm, and the width in the one direction of the one of the plurality of fixed blade grooves is more than or equal to 0.3 mm.