The synthesis of the philosophy that has guided the version of "POCKET FORMULA" is to supply a simple tool, for easy everyday consultation, to everyone who is daily concerned with designing.
To enclose all necessary formulas in a coordinated and logical way in this small pocket volume was an operation that needed attention and that demonstrates how well Bonfiglioli understands designer needs. Working well and quickly is an objective not always easy to achieve, today, with "POCKET FORMULA" you can.