Patent ID: 8056242

Claim:
A hand tool for a craft knife having a handle having a front end; a rear end; a mounting chamber being defined in the rear end of the handle; a mounting tube being hollow, being formed on and protruding from the rear end of the handle, communicating with the mounting chamber and having an external surface; an inner end being formed on rear end of the handle; and an outer end; a cap being detachably mounted around the mounting tube and abutting the rear end of the handle; a socket bit being formed on and protruding from the front end of the handle and having a rear end being formed on the front end of the handle; a front end; an internal surface; and a keyed hole being formed in the internal surface of the socket bit; and an ejector tube being slidably mounted around the socket bit near the front end of the socket bit; a blade tray being mounted in the mounting chamber and the mounting tube of the handle and having a base having an inner end; an outer end; an internal surface; and two mounting protrusions being formed on the internal surface of the base near the inner end and facing each other; and a casing being pivotally mounted on the internal surface of the base and having a connecting end being pivotally connected to the inner end of the base; an inserting end; an external surface; two mounting holes being formed in the connecting end of the casing and being respectively mounted on the mounting protrusions of the base; an opening being formed through the inserting end of the casing; and a blade chamber being formed in the casing and communicating with the opening; and a connector being detachably connected to the handle and having a socket bar being detachably mounted in the keyed hole of the socket bit and having a front end; a rear end corresponding to and being mounted in the keyed hole of the socket bit; an external surface; and a threaded hole being formed in the front end of the socket bar; a clamping tube being mounted securely in the threaded hole of the socket bar and having an external surface; a mounting end; a clamping end; and an outer thread being formed around the external surface of the clamping tube near the mounting end and engaging the threaded hole of the socket bar; and a pressing tube being mounted around the clamping tube and pressing against front end of the socket bar and the clamping end of the clamping tube to hold a blade in the clamping tube.