Hand hole digger for built-in lock of window or door

The utility model relates to a hand hole digger for the built-in lock of a window or a door, comprising a rocker arm 1, a screw rod 2, a screw rod sleeve barrel 3, a drill bit 4, a chucking appliance 5, a screw nut 6, a screw rod 7 and a soft rubber shim 8. A distance L < 2 > between the inner walls of both sides of the chucking appliance 5 is matched with the thickness of the window or the door and slightly larger than the thickness of the window or the door for 1-2 cm, and a distance between the inner wall of the end part of the chucking appliance 5 and the center of the drill bit 4 can be regulated according to the length of a distance between a built-in lock hole and a door side for screwing the screw nut 6 to drive the screw nut 7. The utility model having the advantages of high efficiency, favorable quality, low labor intensity, easy fabrication, easy control and operation can be widely used for building trades.