They are small and lighter than most. Here's my installation guide. Installing Sperzel locking tuners « on: April 26, 2009, 12:39:15 PM » Hey guys, I have a few questions about installing Sperzel locking tuners, it's a 3 by 3 set of graduated post position tuners for a Les Paul angled headstock. Some people crab about the installation of the small locating pin. 1,936. urgent need of sperzel tuner installation instructions! Sep 11, 2009 Houston, TX. String Installation. Sperzel Guitar tuners require approx .382" holes in the head stock for the tuners to fit. This is especially a good idea with vibrato equipped guitars or in cases where neck relief is closely monitored on guitars with low action. The quality is outstanding. It's not that difficult installing them. They stay tuned. Our housing extends further up the shaft with the bushing threads … I never have tuning problems with Sperzel tuners. If this is your first visit, be sure to check out the FAQ by clicking the link above. NO BACKLASH !! Sperzel's don't ! Bengal65 Country Gent. Just went to install the 3-a-side Sperzel locking tuners on my son's les paul. Sperzel Tuner Installation Part 1 Discussion in 'Technical Side of Things' started by Bengal65, Oct 3, 2009. And have staggered length on the string posts. By popular demand. Re: [Tuner] Install Sperzel T/L « Reply #7 on: January 28, 2011, 06:35:17 AM » All you have to do is install the tuner, tighten the nut a little bit, make a nice indention with the pin, remove the tuner, drill the hole using the indentation as a guide. Many people only remove and replace one or two strings at a time before going on to the next pair. Sperzel tuning keys offer our unique design and precise machining tolerances to eliminate shaft wobble and provide minimum backlash and endplay, which greatly reduce your guitar's tuning problems. Really smooth operation. I've installed many of these on new necks and older necks. Please see the "Drilling your own post holes for guitar" section. The tuning holes need to be widened, new holes need to be drilled for the sperzel screw-pop in type thing. You may have to register before you can post: click the register link above to proceed. I have these on all my best guitars. Sperzels with the #2 buttons , will take up a minimum of approximately 1.5" (or 1-1/2") of