Patent ID: 6981327
Filing Date: 2006-01-03
Classification: B21D,B26F,Y10T

Abstract:
1. A punch adapted to be mounted on a draw stud and for cutting a hole in a workpiece, said punch comprising: a cutter including a distal surface, a proximal surface, an aperture through said cutter extending from said distal surface to said proximal surface, said proximal surface being used to form a hole in a workpiece and having a forwardmost end defined thereby; a nut removably mounted to said cutter, said nut including a first portion, a second portion and means for engaging a draw stud with said nut, a perimeter of said first portion is larger than a perimeter of said second portion; and said cutter is assembled with said nut by passing said second portion of said nut through said aperture in said cutter, an end portion of said second portion of said nut extending beyond said forwardmost end of said cutter when said cutter is assembled with said nut.