WHAT IT DOES
Different hand saws can be used to cut wood, metals, plastics, and plasterboard of different thicknesses. Do you need a hand saw or a power saw? This may depend on how much cutting you need to do, material, accuracy needed etc.
Drywall Saw
Used to cut holes in plasterboard/drywall, also known as jab saw. Drywall saw blades usually have between 6 and 8 TPI. Always make sure the teeth are the right way round for your saw when you are fitting a new blade.