4-Sided Optical Polygon, Grade 1
Webber Optical Polygons provide an easy, accurate method of checking and calibrating angles. They are designed for use with autocollimators in measuring angle spacing. The exclusive one-piece design provides compact, fixed master for precise angle spacing
1" mounting hole, flanged bushing, lapped washer and hold-down bolt furnished with each unit
Certificate of Calibration included
Chrome carbide polygons provide a hardness of Rockwell 71-73 C
Corrosion resistance 10-20 times that of 18-8 stainless steel
Furnished in case
Lifetime accuracy
Maintenance problems are virtually eliminated
Target faces are highly reflective and optically flat.
