The operation of this cutter, just like most others, is rather simple. Start by pulling the cutter apart so that the blade retracts and an opening is present for you to insert the head of your cigar. Partially close the cutter so that you can see where the travel of the blade will be and adjust the depth of cut.
Once you are comfortable with the amount of cap to be removed, firmly close the cutter in a single quick action. Avoid snapping the cutter open and closed to cut through the cigar, you do not want to hack at the tobacco, rather cut it in one clean and crisp motion to minimize damage.