Brunson 190 Series Optical Micrometer UNIT OF MEASURE:Inches .001" Plane-Lok: For applications that require

Plane-Lok: For applications that require maximum stability and accuracy

as well as three "axial" setscrews in a line along the length of the sphere

GHT66 or GHT78 to every telescopic pole

Combined with the stadia calculation of distances from staff readings the NAK2 circle adds the application benefit of detail survey work

Adapter for attaching the GRZ101 prism to poles and carriers with stub

Brunson 190 Series Optical Micrometer UNIT OF MEASURE:Inches .001" Plane-Lok: For applications that requireThe 190 optical micrometer translates the line of sight laterally with an accuracy of 0. 0005 using an optical flat. The cast aluminum housing has a 1. 655 opening to fit the telescope barrel of all Brunson optical tooling transits and levels. Adapters are available which allow this micrometer to be used with a variety of theodolites as well. Any of four machined slots in the housing (located at the 12, 3, 6, and 9 oclock positions) fit over a