PCB Tooling Holes Design Guide
Taken by themselves, the tooling holes in a circuit board would seem commonplace as they are regular-looking thru-holes drilled in the board. But a closer look at their purpose will reveal their importance. Some are used for attaching hardware on a circuit board, while others are designed to help with the board’s fabrication and assembly. We will examine these different holes in greater detail as we discuss PCB tooling holes and the design guidelines that accompany them.