Polished 90 mm dia & 20 mm thick approx.
Your Rating Rate… Perfect Good Average Not that bad Very Poor
Your Review
Name *
Email *
There are no reviews yet.
Photographic replica gratings mounted on a plate glass & suitable for visual. Grading size 25 x 25 mm, on glass plate 50 x 38 mm. The grating are of :
9cm x 14.5 cm , pack of 25 sheets.
Optically worked, ground edges
Ground & polished faces, edges ground. Size 50 mm high & 45 mm wide.
There are no reviews yet.