This is a Mayhew MAY-31958 slotted panel cutter. It is a precision tool that is used to cut panels out of a piece of wood. It has a serrated blade that makes it easy to cut through the wood.
This is a Mayhew MAY-31975 RIVET/BOLT CUTTER. This is a precision tool that is used to cut bolts and rivets. It has a serrated blade that makes it easy to cut through the metal.