This innocent-looking 25mm dia. flat steel bagel is really a very versatile pocket screwdriver. What makes it so effective is the range of edge thickness (from 0.030" to 0.090") created by a ramp formed on one side. It replaces coins and table knives, all of which have width and strength limitations. We sell them by the dozen because they make excellent gifts, particularly for those who you want to discourage from using cutlery for household repairs. These screwdrivers should be in every kitchen knife drawer and pocket. Guaranteed to be the only screwdriver in the shop that will snugly fit the cap iron screw on a plane. Made in USA. What else can we say?