With its stunning appearance the new Schaller Da Vinci tuner opens up a fresh and original dimension to guitar tuning and tuner design. Along with its elegant shapes and precious finishes comes the legendary Schaller quality of materials and workmanship. While the Da Vinci´s unique window – specially hardened and UV-resistant – lets you enjoy the beauty of design and functionality it also protects the precious inner life from environmental influences making your Schaller Da Vinci a true gem and a long lasting investment. The Da Vinci is a state-of-the-art tuning machine featuring flawless construction, ultra smooth action and unparalleled tuning stability. The transparent cover plate is made of a specially developed high-quality scratch-proof polycarbonate that is also resistant to chemical cleaning agents. It is also resistant to UV light and to extreme temperature changes. The worm gear has been completely redesigned to provide previously unknown tuning precision in a machine head of this type. Featuring a new surface, this tunehead provides the same delicate fine tuning normally associated with enclosed greased machine heads. By extensive research for new materials and optimized geometries the Schaller Da Vinci tuning gears allow for superiour performance without grease or polymere lubrication. Features: Model: 3 left + 3 right, Buttons: .02 (M6 Large Metal-Button), Surface: Gold, Ratio: 1 : 18, Weight g/item: 41, Bore mm: 9.8