What does a corner trowel do? A corner trowel is useful if you’re taping a corner joint when putting up drywall too. After you’ve used the drywall knife to apply the mud to your corners, all you need to do is measure a piece of drywall tape that’s the length of the wall and fold it in half.
How do you trowel an internal corner?
How do you use a mudding corner tool?
What is a corner tool? This Inside Corner Tool features stainless-steel blades designed to finish 90° inside corners. Used to smooth out the final layer of mud to tapered corners. The tool has a comfortable soft-grip handle. Tempered stainless steel construction. Designed to create a smooth finish on a 90° inside corner.