The weight of this hole puch would give one the impression of being a quality device. It could probably be best used to fend off intruders. As a 10-page hole punch that's a bit optimistic. I suggest not trying to punch more than 5 sheets. You might get away with 6. When it jams when not if it's very difficult to clear. Fortunately I have access to two complete mechanics tool boxes. It was also three days before we figured out what the random piece of plastic was that fell out of the box. I'm not sure why three-hole punches need locks but that is what it is. Everytime the punch is moved the lock falls on the floor. On the up-side the plastic bag that contained the punch in the box is very good for storing rubber bands.