Patent ID: 6470557
Filing Date: 2002-10-29
Classification: B25B,Y10T

Abstract:
A method for installing a helical coil insert having a tang in a tapped hole formed in a workpiece, the steps comprising:positioning said helical coil insert in alignment with a bore extending along an axis of a tubular body; rotating a mandrel coaxially disposed in said bore of said tubular body from a position retracted from said helical coil insert to a position engaging said helical coil insert; rotating said mandrel from said position engaging said helical coil insert to a position installing said helical coil insert at a selected depth in said tapped hole of said workpiece; and driving a punch axially in a bore of said mandrel from a retracted position in which an end of said punch is disposed within said bore of said mandrel to an extended position in which said end extends through said helical coil insert to sever said tang from said helical coil insert.