Center-Locating Punch For Threaded Holes Set With Handle (1/4 -20 5/16 -18 3/8 -16 7/16 -14)

Also known as transfer screws, these punches can be used in any threaded hole to transfer the hole location. Use the handle to screw a punch into a hole. Place your workpiece against the punch and strike it with a hammer to mark the hole location.