This is a precision gauge designed to: 

·          Accurately measure and pre-mark the horizontal datum line of a spectacle frame

·          Check and verify segment heights and centres 

·          Gauge screw threads, lengths and head sizes 

·          Measure the lengths of temples including curl sides 

·          Gauge the width of a temple hinge charnier

·          Measure the width of a temple

·          Measure the pantoscopic angle of a frame. 

This instrument is easy to use when measuring or verifying the above parameters. It is made from aircraft quality aluminium and hardened for long life durability. 

This gauge is essential for accurately measuring and verifying progressive and multifocal lens centres. The monocular PD lines and vertical graduations on the sliding plate allow for easy markings of PDs and heights for bifocals, aspherical and progressive lenses. It is also possible to verify bifocal, trifocal, progressive occupational and aspheric heights simply and accurately. 

The Stenersen Frame Gauge is a useful professional tool for use by optometrists, dispensing opticians, optical technicians and trainees alike.