Posted on August 1, 2022March 24, 2023 by Dale Phillips Product Reviews: Knilling Perfection Planetary Pegs Product Reviews: Knilling Perfection Planetary Pegs Reviewed by Randy DeBey Originally published in American Lutherie #100, 2009 By now, just about everyone who works with stringed instruments has at least heard of Pegheds or Knilling Perfection Planetary Pegs. These are geared tuning pegs that look very much like ordinary ebony friction pegs, but work more like fine tuners. They contain a set of planetary gears, which reduce the rotation by a rate of 4:1 for violin family instruments and flamenco guitars, and 16:1 for steel string guitars. Those who haven’t yet taken the plunge and installed a set are probably waiting to have various concerns answered. I’ll try to explain how they are constructed, so you can imagine for yourself how well they might work, and also relate some of my own experience with them. I’ve installed over 100 of the pegs, mostly in violins, but also in cellos, ouds, a banjo, and a guitar. Become A Member to Continue Reading This Article This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page. If you are already a member, login for access or contact us to setup your account.