A blade set for an electrically operated hair cutting appliance, comprising: a stationary blade for a blade set of an electrically operated hair cutting appliance, including a first wall and a second wall, each wall defining a first surface (22a, 32a), a second surface (22b, 32b) facing away from the first surface, and a laterally extending leading edge (23, 33) defining a plurality of laterally spaced apart longitudinally extending projections (24, 34) which define teeth, and wherein the first surfaces of the first and second walls define a laterally extending guide slot for a movable blade of said blade set between them; and a movable blade with a toothed leading edge, said movable blade being laterally movably arranged within the guide slot defined by the stationary blade, such that, upon lateral reciprocation of the movable blade relative to the stationary blade, the toothed leading edge of the movable blade cooperates with the teeth of the stationary blade to enable cutting of hair caught therebetween in a scissor action; wherein the first and second walls (20, 30) are mutually connected by at least one discrete connector portion that extends between their respective first surfaces (22a, 32a), and wherein the connector portion is disposed at a position between the lateral extremities of the guide slot, and corresponds to a laterally extending guide or cam slot provided in the movable blade, such that the connector portion also serves as a guide cam for the movable blade, characterized in that the first surfaces of the first and second walls face each other, at least at their leading edges (23, 33), while facing projections along the leading edges of the first and second walls are mutually connected at their tips (26, 36) to define a plurality of generally U-shaped teeth. a stationary blade for a blade set of an electrically operated hair cutting appliance, including a first wall and a second wall, each wall defining a first surface (22a, 32a), a second surface (22b, 32b) facing away from the first surface, and a laterally extending leading edge (23, 33) defining a plurality of laterally spaced apart longitudinally extending projections (24, 34) which define teeth, and wherein the first surfaces of the first and second walls define a laterally extending guide slot for a movable blade of said blade set between them; and a movable blade with a toothed leading edge, said movable blade being laterally movably arranged within the guide slot defined by the stationary blade, such that, upon lateral reciprocation of the movable blade relative to the stationary blade, the toothed leading edge of the movable blade cooperates with the teeth of the stationary blade to enable cutting of hair caught therebetween in a scissor action; wherein the first and second walls (20, 30) are mutually connected by at least one discrete connector portion that extends between their respective first surfaces (22a, 32a), and wherein the connector portion is disposed at a position between the lateral extremities of the guide slot, and corresponds to a laterally extending guide or cam slot provided in the movable blade, such that the connector portion also serves as a guide cam for the movable blade, characterized in that the first surfaces of the first and second walls face each other, at least at their leading edges (23, 33), while facing projections along the leading edges of the first and second walls are mutually connected at their tips (26, 36) to define a plurality of generally U-shaped teeth.