Patent ID: 7146738

Claim:
A hole puncher comprising a first handle and a second handle pivotally connected with said first handle, said first handle having a first mouth section provided with a knife protrusion roller module, an end portion of said first mouth section being formed with two first pivotal lugs, a center of said first pivotal lugs having a first hole for mounting said knife protrusion roller module, a circumferential edge of said first hole being aligned with equidistant position slots on one of said pivotal lugs for positioning of said knife protrusion roller module, said knife protrusion roller module having two first rotating discs which can be attached between said first pivotal tugs, a center of said first rotating discs being engaged with a pivot shaft section for mounting said first hole, a first C-shaped retainer being used to restrict said shaft section, an inner face of said first rotating discs being formed into a plurality of equidistant slots for attaching various knife head protrusions and at least a punching protrusion, said punching protrusion having a conical shape and a grooved slot at a circumference thereof, an external side of one of said first rotating discs allowing an elastic element and a position steel bead to fasten to a position slot of one of said first pivotal lugs, said second handle having a second mouth section provided with a knife mold roller module, an end portion of said second mouth section being formed with two second pivotal tugs, a center of said second pivotal lugs having a second hole for mounting said knife mold roller module, a circumferential edge of said second hole being aligned with equidistant position slots on the other one of said second pivotal lugs for positioning of said knife mold roller module, said knife mold roller module having two second rotating discs which can be attached between said second pivotal lugs, a center of said second rotating discs being engaged with a pivot shaft section for mounting said second hole, a second C-shaped retainer being used to restrict said shaft section, an inner face of said second rotating discs being formed into a plurality of equidistant slots for attaching various knife mold seats and at least a chopping board, said knife mold seat being formed with a recessed slot, an external side of the other one of said second rotating discs being provided with an elastic member and a position steel bead.