For sale, a high-precision arc protractor for cartridge alignment. This protractor is made of 3mm high-quality acrylic, coated with a yellow film, and high-precision laser-cut and engraved. The first picture is for reference only; the real protractor looks like the one in the second and third pictures.
The arc protractor is the most precise protractor for cartridge alignment. This one is designed for Yamaha P-350 turntables.
 
Supplied with exhaustive instructions.
 
We also make custom protractors according to the client's specifications