Eschenbach Metric Hole Scale 1152-02

Precision measuring scale magnifier with metric hole scale. Features: 0.3" x 0.4" grid in 0.025 squares. Two horizontal scales – 4" with 0.005 divisions – 20 mm with 0.1 mm divisions. Angle scale 0 to 90° in 1° divisions. Radius scale 1 to 10 mm. Nine circles 1/10 mm to 3 mm diameter.