Whats more annoying?

Im here at work and the machine I run is a slitter we cut one big roll of plastic into multiple smaller rolls and rewind them into a new smaller roll. Periodically I have to replace the knives they are a pain im the *** and is the most annoying thing ever. This pos is completely comprised of lock nuts (the one with the plastic threads) and bolts that are 3 inches too long! I have about a 3inch hole to put my hand in and untighten a 4 inch bolt that could easily be 3/4 of an inch long. Lol