Locking Machine Heads

More than 15 years ago, Schaller was the first manufacturers to develop and patent locking machine heads.

These function like normal tuners but you do not need to wrap the strings around the shaft at the beginning. You position the string in the shaft hole with the clamp screw loosened, shorten the string approx. 10 mm behind the shaft, clamp the string with the clamp screw and tune the string.From then on, laborious, time-consuming string changing became a thing of the past.

These days, the Schaller clamp machine heads have become the standard on the guitar scene.

Schaller has been offering its clamp machine heads for many years, also as a “top mount” version and of course, with every possible surface imaginable and with wingnut combinations.

From the trade press:

Thread the string through the hole, clamp it, cut off the loose end and tune it up. That's it - you're done!
No more manual string-winding and no more unmanageable strings.
Finally, precise, stable tuning!