Head The punch holder applies an upward force to the head to strip
(extract) the punch from the stock after a hole has been punched.
Fillet A small amount of tool steel which "fills in"
the sharp corner between the shank and the head. Produced by the normal
breakdown of a grinding wheel during the punch manufacturing process.
Shank Round body of the punch. Precisely machined to insure the
proper fit into a punch holder.
Radius Blend Between the shank and the point. An important structural
feature which transfers punching and stripping forces between the shank
Point Determines the size and shape of the pierced hole. Precisely
machined to maintain proper alignment relative to the matrix.