Teak is a hard wood with an open pore structure, similar to mahogany. It is seldom used for guitars because it is somewhat difficult to work, and very hard on tools.
This beautiful instrument was built from a teak cutting board that I got for free from Home Depot for review. 32" Eden neck, active electronics. Teak is hard enough for a simple oiled finish. This one was built with a minimum of tools, mostly by hand, to show that it can be done and how.
More: Osprey Bass (BC Rich Eagle) ...
Most modern fret wire is made from what is called eighteen percent nickel-silver. The term denotes a common alloy used in many commercial and industrial applications where high corrosion resistance is required and excellent cold-working properties are necessary for fabrication.
More: Making Fret Wire ...