This is an optional accessory of a laser autocollimator.
LAC-POL-12 is a 12 faceted mirror, we have split Twelve to precisely 360° Can be used to measure the eccentricity of the graduation error angle that is attached to the machine such as the indexing angle.

※LAC-POL-12 is Nikon Instech Co., Ltd. will be the distributor.
Please contact Nikon Co., Ltd. for the RoHS Directive.