a jab saw was used to cut keyholes; that’s why it’s also known as a keyhole saw. A drywall saw is a type of jab saw with an extra-thick metal blade and coarse teeth that make it suitable for ...

If a shop was “high-tech,” it might have a metal cutting bandsaw or abrasive-disk chop saw. In recent decades plasma cutters appeared in some farm shops to take slicing metal to a higher level.