The present invention relates to a hair cutting appliance (10), a blade set (20) for a hair cutting appliance (10), and to a stationary blade (22) for said blade set (20), said blade comprising a first wall portion (44) and a second wall portion (46), each which defining a first surface (80, 82, 84), and a second surface (86, 88, 90) facing away from the first surface (80, 82, 84), and an intermediate wall portion (48) arranged between the first and the second wall portion (46), wherein the first wall portion (44) the second wall portion (46) and the intermediate wall portion (48) jointly define at least one toothed leading edge (32, 34), wherein the first surfaces (80, 82) of the first wall portion (44) and the second wall portion (46) face each other, at least at their leading edges (32, 34), the first wall portion (44), the second wall portion (46) and the intermediate wall portion (48) are interconnected at their tips (38) to define a plurality of teeth (40), wherein the first surfaces (80, 82) of the first wall portion (44) and the second wall portion (46) define therebetween a guide slot (76) for a movable blade (24) of said blade set (20), wherein the first wall portion (44), the second wall portion (46) and the intermediate wall portion (48) comprise an overall height extension (to), and wherein the overall height extension (to) of the first wall portion (44), the second wall portion (46) and the intermediate wall portion (48), at least at the at least one leading edge (32, 34), is in the range of about 0.3 mm to about 0.75 mm, preferably in the range of about 0.4 mm to 0.5 mm.