Manufacturer: Starrett
Brand: Starrett
Model: 37-6
![Starrett 37-6 Inside Joint Caliper, Steel, Flat Leg, 0-6\](http://ecx.images-amazon.com/images/I/31TfyVIK0uL._SL110_.jpg "Starrett 37-6 Inside Joint Caliper, Steel, Flat Leg, 0-6\") |
The Starrett 37-6 lock joint transfer-type inside caliper with fine adjustment has a leg length of 6†(150 mm) but opens to approximately one-third larger than the leg length. Outwardly curving leg tips measure the internal size of an object. Legs are made from high-grade steel and are ruggedly constructed and well-finished. The locking joint can be quickly and firmly locked by a partial turn of the large knurled disc. Transfer arm allows the user to transfer measurements from awkward places where it is necessary to move the legs after they have been set to size. The adjusting screw permits fine adjustment for very accurate measurements. Knurled adjusting nut makes the final adjustment after the legs have been set to approximate size and the joint has been locked. The spring washer under the disc maintains proper leg tension when the joint is loosened. Curved tips transfer the measurement of the internal size of an object. Calipers measure the distance between two opposing sides of an object. They make inside, outside, depth, or step measurements, according to their type. Calipers are commonly used in architecture, metalworking, mechanical engineering, machining, manufacturing, carpentry, and medicine. The simplest calipers have two legs to mark the two points and require a ruler to take the measurement. More complex calipers use two sets of jaws instead of legs and have up to two graduated scales. Vernier, dial, and digital calipers give direct and accurate readings and are functionally identical, having a calibrated scale with a fixed jaw, and another jaw with a movable pointer that slides along the scale. The vernier caliper has a scale sliding parallel to the main scale for an additional, fractional reading to improve measurement precision. The dial caliper has a circular dial with a pointer on a toothed gear rack replacing the second vernier scale. As with the vernier, this second measurement is added to the reading from the main scale to obtain the result. The dial caliper is used also for measuring...
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