Better Better Xacto Blade Holder Cover

I took another pass at a revised blade cover for Unicorn Hatmaker's Xacto Blade holder, this one is intended to fit snugly, maybe even tightly, and doesn't take as much material to print. I dare say it's significantly more refined than my previous attempt.

Print instructions

Print it on end, or on its side. It shouldn't need supports.

My print file is sliced for PETG.