The invention discloses an efficient overall hard alloy tool and relates to the field of drilling machine accessories. The efficient overall hard alloy tool comprises a tool handle, the two sides of the tool handle are provided with screw holes correspondingly, one side of the inner wall of one screw hole and one side of the inner wall of the other screw hole are provided with a first clamping screw rod and a second clamping screw rod correspondingly, and one end of the first clamping screw rod and one end of the second clamping screw rod penetrate through the tool handle and are extended intothe tool handle. According to the efficient overall hard alloy tool, when the tool handle is damaged, the first clamping screw rod or the second clamping screw rod is rotated, a guide block slides left and right in a guide groove, a clamping block loosens a first supporting rod, the tool handle is separated from the first supporting rod, and the tool handle is replaced. When a drill bit is damaged, the drill bit is rotated to be separated from a supporting block, and the drill bit is replaced. Accordingly, the problems that according to existing tools on the market, drill bits cannot be separated from tool handles, both the drill bits and the tool handles need to be replaced when either the drill bits or the tool handles are damaged, and the cost is increased are solved.