Abstract: A cup having an integrated straw is provided. The cup has a mold release surface at a liquid outlet portion, in the injection molding process, a male mold of an accommodating room can be directly removed from the mold release surface to form the liquid outlet portion. A cup body is integrally formed with a straw body, which can easily achieve injection molding release. When the cup body is filled with a solid or liquid beverage, the user can suck the beverage through a top opening portion of the straw body.

Abstract: A cup having an integrated straw is provided. The cup has a mold release surface at a liquid outlet portion, in the injection molding process, a male mold of an accommodating room can be directly removed from the mold release surface to form the liquid outlet portion. A cup body is integrally formed with a straw body, which can easily achieve injection molding release. When the cup body is filled with a solid or liquid beverage, the user can suck the beverage through a top opening portion of the straw body.

Abstract: A cutter assembly has an adapter, an outer collar, a recoil spring, a head, a pushing assembly and a central drill. The adapter has an L-shaped guiding slot and multiple balls. The outer collar is slidably and rotatably mounted around the adapter and has an annular protrusion and a positioning rod. The annular protrusion selectively abuts against the balls. The positioning rod is mounted on the outer collar and extends slidably into the guiding slot. The head is mounted detachably on the adapter and has a saw and an inserting rod. The inserting rod is inserted into the adapter and has an annular engaging groove. The annular engaging groove is formed around the inserting rod at a position corresponding to the balls to selectively hold the balls in the engaging groove.

Abstract: A cutter assembly has an adapter, an outer collar, a recoil spring, a head, a pushing assembly and a central drill. The adapter has an L-shaped guiding slot and multiple balls. The outer collar is slidably and rotatably mounted around the adapter and has an annular protrusion and a positioning rod. The annular protrusion selectively abuts against the balls. The positioning rod is mounted on the outer collar and extends slidably into the guiding slot. The head is mounted detachably on the adapter and has a saw and an inserting rod. The inserting rod is inserted into the adapter and has an annular engaging groove. The annular engaging groove is formed around the inserting rod at a position corresponding to the balls to selectively hold the balls in the engaging groove.