Drywall Knife Cover / Sheath

10-29-25 note: while this works for whatever brand of drywall knife I have and gives it a very nice fit, it may or may not work for yours. One person said it was too small for theirs in the comments and they had to cut it off. You could try increasing the size a few percentage, but since there’s so many different knives out there you’d probably just have to test and see if it works for yours