Also known as Hastings Triplet magnifiers, these have three lenses bonded together for distortion-free images. A metal case protects them when in storage and serves as a handle when in use.

Magnify and measure in one operation. Also known as Hastings Triplet magnifiers, these loupes have three lenses bonded together for clear magnification.

General purpose scale measures radii from 1/16" to 3/8"; angles up to 90° in 1° increments; lengths up to 1/2" in 0.005" increments; lengths up to 10 mm in 0.1 mm increments; and line widths of 0.001", 0.002", and 0.003".

Protractor scale measures angles up to 360° in 1° increments.

Inch scale measures up to 3/4" in 0.005" increments.

Metric scale measures up to 20 mm in 0.1 mm increments.