- The electronic caliper is a type of metalworking compass that has a maximum measuring range of 6 inches and 150 mm. This electronic compass has a semi-transparent mounted wheel provided for rotation. It also carries a mounted bar magnet. If you obtain this caliper, you can benefit from its photoresistor. The photoresistor indicates the level of intensity of the light from a voltage.
- The dial caliper is the first instrument of choice for the metalworker. The caliper has a maximum measuring range of 6 inches, and a 0.100 in per revolution. This tool has a graduation of 0.001 inch. This compass allows you to read dimensions quickly. The dial caliper has unique features, such as the depth measurement rod. The depth rod extends as you move the jaws in and out.
- With this digital metalworking compass, you can see a digital screen showing ratios and distances between compass legs. This compass is helpful for dividing a circle evenly into arcs.
- The beam compass is used for woodworking or metalworking. This beam compass has a pair of jam nuts that create the rod clamp. The jam nuts have a wing-nut at the top to provide clamping pressure. You can scale the beam up or down. You can also adjust the beam to any length.
- The vernier caliper is a stainless steel compass. The vernier caliper has a maximum measuring range of 36 inches and a graduation style of 0.001 inch. With this compass, you must align an etched line on the instrument's "vernier plate" with a spaced line. You must have the spaced line run the length of the caliper's handle. The alignment of these two lines is crucial for the accurate measurement of this metalworking compass.
