Optical Bench, Double Metal Rod

Heavy, sturdy metal bench made of a pair of plated metal rods mounted parallel and supported at both ends by cast metal legs with levelling screws.One of the rods has engraved scale graduated in millimeters. Includes heavy cast metal riders with index mark for mounting accessories, with heights of the accessories adjustable. Two of the riders have slow-motion knobs to allow transverse motion of accessories for their axial adjustment/allignment. Includes accessories same as in Cat no. 1110900. With 0-100 cm scale