Built-up puncher

A built-up puncher comprised of a stand body, a pressure plate, and a bottom block;

• wherein said stand body is having a curved and streamlined surface for mounting thereon of a plurality of fixed supports, said stand body further comprising a plurality of round holes to communicate with a plurality of round holes made on said fixed supports, said fixed supports each having a generally L-shaped front extension with an opening made thereon and a notch made at both an inner side of said opening and a top portion of said fixed support adjacent said generally L-shaped front extension respectively to facilitate the operation of the pressing process of said pressure plate;
• said pressure plate having a properly arranged curved surface comprising a plurality of generally L-shaped retaining slots to match with the generally L-shaped front extensions of said fixed supports;
• and wherein said pressure plate is mounted on said stand body by aiming said generally L-shaped retaining slots of said pressure plate at said generally L-shaped front extensions of said fixed supports to let said generally L-shaped retaining slots be respectively retained by said notches of each of said fixed supports;
• and wherein said pressure plate is removed from said stand body by separating said generally L-shaped retaining slots of said pressure plate from said notches of said fixed supports.