Q: I see several manufacturers who advertise their guitars as being “plek’d.” What is Plek, and what does it do?
A: A Plek machine is a sophisticated computer-controlled device that is used to dress frets to an extremely accurate level. The computer scans the instrument’s neck with the strings on it, then figures out what the perfect fret job would look like. Once the scanning is done, the machine uses automated files and tools to dress the frets to match the “ideal” it has calculated.
The results can be fantastic, within extremely close tolerances. Plek machines are quite expensive, so they are not very common. But, several manufacturers are offering this on their factory instruments, such as Gibson (certain models) and Wechter (all guitars). Some independent luthiers and repair techs are also offering this as an aftermarket option.