On Sep 3, 2:10*pm, "Ultraglide"
wrote:
I have seen drywall installers run a small tool over edges that they have
cut. *Is this to create a bevel? *What is the tool, it appears to look like
a small plane?

It's probably a rasp to knock off the errant gypsum high spots so the
boards will fit more tightly together. Some people use a Surform
block plane tool, some use a expanded metal mesh wrapped block of
wood, and other people just use their drywall knife.

R