Patent ID: 7587830

Claim:
A punch for cutting a hole in a workpiece, the workpiece having a pilot hole provided therethrough through which an associated drive member is configured to extend, said punch comprising: a punch body having a bore extending at least partially therethrough and having first and second opposite sides; at least one piercing portion extending from said first side of said punch body a predetermined distance for piercing the workpiece; at least one cutting portion extending from said first side of said punch body a predetermined distance for shearing the workpiece after said at least one piercing portion has pierced the workpiece; and an insert member fastened within said bore of said punch body which is configured to center said punch body with the pilot hole of the workpiece, said insert member extending outwardly from said bore from said first side of said punch body, said insert member being a separate member from the associated drive member which is configured to extend through the pilot hole.