Small Spreading Caliper (rounded ends)

GPM Model 106    Price:  $1,349

Product Details

The GPM Small Spreading Caliper with rounded ends provides accurate measurement of short distances between two points, where one or both points may not be on a flat surface. The ends of the spreading branches are rounded for the patient's comfort, as opposed to the GPM Small Spreading Caliper model 107, which has pointed ends.

The GPM Small Spreading Caliper with rounded ends is manufactured from chrome plated steel and most commonly used for craniometry and cephalometry.

Hinged at the base, the two curved branches with rounded ends are connected by a pivotal ruler, which is engraved in millimeter intervals from 0 to 30 cm. The branches can be immobilized in any position by a screw located on the slider which guides the ruler. The ruler gives the precise distance between the two points over which the measurement has been taken.

GPM's Small Spreading Caliper with rounded ends can be purchased alone or as part of a package in the Large Instrument Kit or Small Instrument Kit.


Measuring range - inches:  0 in - 11.81 in

Measuring range - millimeters:  0 mm to 300 mm

Weight:  8.47 oz / 0.24 kg


GPM anthropological instruments are high-precision instruments, manufactured for decades to the highest levels of Swiss quality craftsmanship. These instruments are exported worldwide and are based on the anthropology developed by Rudolf Martin. Ongoing work on new technology and development ensures an assortment of GPM instruments that are always up-to-date and meet every demand.