Center punch and drill the hardened rivet stem to a
Hold the drill perpendicular to the surface and drill
depth of the locking collar using a cobalt or carbide
nearly through the rivet head using a drill the next
drill approximately two sizes smaller than the stem.
size smaller than the rivet shank.
Pry the remainder of the locking collar out of the
In most cases the rivet head will twist off while
rivet head using a pin punch.
drilling, if not, pry off the rivet head using pin punch.
Use a pin punch the same size as the stem to
Drive the remaining rivet shank using a pin punch
punch out the stem.
with diameter equal to or smaller than the rivet
Figure No. 1: Rivet Removal