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 accurate protractor for cartridge alignment; this one is designed for the following Fidelity Research tonearms:

• FR-64

• FR-64S

• FR-64FX

• FR-14

• FR-24

• FR-24Mk2

• FR-54

The geometric features are compliant with Fidelity Research specifications; see the first picture.

It is supplied with detailed instructions.

We also make custom protractors to the client's specifications.