I go through two of these 100 pack utility knife blades a year. I'm just an avid do it yourselfer, not a construction professional. I use the blades for yard work, garage projects, wood working, automotive repairs, wire stripping, and more. The dispenser pack allows me to mount it on a convenient spot in my garage wall, right next to my toolbox. The blades are very sharp and hold an edge surprisingly long. Keep making this great product Stanley and I will keep buying it!