I recently purchased a few sets of bone nuts & saddles for current projects. Nuts are 38mm, which is what I wanted, but the saddles are the thinnest I've ever seen. Thicker than 1/16" but less than 3/32", they come in at .076", or 1.93mm. I have no bit or blade that will cut a slot that size - the SM fret slot blade is .023". All of my router downcut bits are larger. Any idea what I can use to cleanly cut a slot that size?