OXD3309050K.

Oxford Precision™ Vernier Bevel Protractor
Suitable for measuring and marking out angles. Fully hardened and ground stainless steel. Bevelled blade ends. Scale plate is graduated 0 - 90° - 0, in both directions through 360°. Magnifying lens for easy reading of Vernier scale to 5 minutes of degree (1/12th of a degree).