Schaller M6 135 3L/3R C

Great big heavy tuners. Really easy to install, super smooth operation, and I've got no worries about them breaking off or being damaged if I drop the guitar. They hold their tuning well, and have a great feel when actually tuning. The only downside for them is that they are very heavy, so they do add a lot of weight to the headstock. I'm happy to deal with this - I'm used to guitars with a lot of neck dive, but for me it's worth it for the added solidity. This could obviously be an issue for some, and especially on lighter bodied guitars.

Overall though, these are very solid, very reliable, incredibly well-built tuners. A little weighty, but otherwise, no complaints.