Review on Enhance Precision and Efficiency with the Router Pyramid Engraving Milling Degrees by Christian Poojary

I use these in a Dremel rotary tool mounted on a commercially made precision router table to cut precise angles for some very small pieces of Kumiko strip where the tolerance is less than 0.004 inch ( 0.10mm). This process is slightly less expensive than using highly specialized Japanese hand planes, which are hard to find outside of Japan and cost over $3,000 for a set of four.