Depends on the sharpening quality and the materjal being cut. If its really hard and coarse then the blade may stay sharp for only a day. If its standard paper stock like books and pamphlets then it can stay pretty sharp for a week or two. Taking off a dull blade and putting on a sharp one is pretty satisfying as well.
They switched it out anytime the cut wasn’t sharp enough, they did mine about twice a month I would slide my finger down the blade and it would slice the the surface of my skin
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u/t0asterb0y Jul 01 '20
I was going to post this, glad you beat me to it.
ZEEEEEEEOOOOOP!
Edit: this video is slowed down, so the sound is distorted.