Drill bits of 1/32in or less are hard to find, expensive and break easily. But in minutes, you can make a tiny drill bit from an ordinary sewing needle. These are readily and inexpensively available in a multitude of small sizes. To make a bit, use two pairs of pliers to snap the needle right at the bottom of the eye. The resulting blank is too hard for filing but, if held in a pin vice, can easily be stoned by hand to yield good cutting edges.

Reference the Parker o-rings size chart to help determine the size for your application. The chart provides dimensions, both nominal and metric, for standard (AN) shrinkage materials ONLY. These correspond to AS568A dimensions.

Haven t heard of that option yet, but for nailing window and door trim I use a trim nail as a drill bit. Simple and readily available. A simple awl stab can help making sure the hole will be in the right spot. Al

I have used these needle bits not as in marquetry, where they are indispensable, but also for drilling 1/50in deep holes 1/2in deep in oak.