Abstract: An adjustable punching device includes a base having a first through hole, a second through hole, a third through hole and a fourth through hole with predetermined separation, a first clamping section and a second clamping section adjacent to the third through hole and the fourth through hole. A fixed knife rack is arranged on each side of the base. The knife for each knife rack is corresponding to the first through hole and the second through hole. A lateral panel is arranged on outer side of the fixed knife rack. A pressing plate is pivotally connected between the lateral panels. A movable knife stage is arranged between two fixed knife racks. The movable knife stage is limited between the first clamping sections and on the second clamping sections. The movable knife rack is corresponding to the third through hole and the fourth through hole. After the hole separation has been adjusted, the pressing plate is pressed to punch holes with fixed separation.

Abstract: A dual function apparatus for cutting and punching includes a main body, a knife switch and at least one punching unit. The main body includes a frame and a connector arranged on the frame. The knife switch is arranged on the frame and includes a switching member for changing a processing position and a knife member arranged corresponding to the switching member. The punching unit is arranged on the frame and corresponding to the switching member. The knife switch is moved for changing the processing position and providing dual function of cutting and punching.

Abstract: An improved corner cutting structure, having a knife seat and a base pivotally connected to the knife seat. The knife seat has an inwardly recessed notch and a receiving slot formed on a periphery. The receiving slot provides the support of a blade. The base has a supporting platform and a cutting board. The cutting board and the blade of the knife seat are correspondingly installed with each other, and the supporting platform is placed underneath the notch. Thereby, when a card is disposed on the supporting platform, the knife seat is pressed rotating to move the blade downward, so as to cut the corner of the card.

Abstract: A slideable hole punch, having an upper seat, at least one drill set and a lower seat. The upper seat has a slide track allowing one slide member to move thereon. The upper seat is fitted over the lower seat. The lower seat accommodates the drill set and has an internal slot. The drill set is disposed between the upper and lower seats. A paper slot is formed between the upper and lower seats. Thereby, paper can be disposed in the paper slot and slide along the slide track by the slide member. The slide member can then press upon the drill set to perforate through the paper to form holes with desired shapes and distances.

Abstract: A knife holder traverser of a corner cutting device, having a bulk body and a knife holder traverser. The bulk body includes a hole for pivotally connecting the knife holder traverser. A positioning member is used between the knife holder traverser and the bulk body. The positioning member has at least one fixing part and a connecting part engageable with the fixing part. Thereby, the knife holder traverser can be positioned and embedded with various orientations. The bottom surface of the knife holder has at least two slots for receiving cutleries in different shapes. When a card is placed on a platform, by rotating the knife holder to change the cutlery with different orientation, the corner of the card can be chamfered or beveled by changing rotating.

Abstract: A slideable hole punch, having an upper seat, at least a set of drills and a lower seat. The upper seat has a slide track allowing one slide member to move thereon. The upper seat is fitted over the lower seat. The lower seat accommodates the set of drills and has an internal slot. The set of drills is disposed between the upper and lower seats. A paper slot is formed between the upper and lower seats. Thereby, paper can be disposed in the paper slot and slide along the slide track by the slide member. The slide member can then press upon the set of drills to perforate through the paper to form holes with desired shapes and distances.

Abstract: An improved corner cutting structure, having a knife seat and a base pivotally connected to the knife seat. The knife seat has an inwardly recessed notch and a receiving slot formed on a periphery. The receiving slot provides the support of a blade. The base has a supporting platform and a cutting board. The cutting board and the blade of the knife seat are correspondingly installed with each other, and the supporting platform is placed underneath the notch. Thereby, when a card is disposed on the supporting platform, the knife seat is pressed rotating to move the blade downward, so as to cut the corner of the card.