Rayco CMM Fixture Plate - 570x450mm M4 Threaded HolesRayco CMM Fixture Plate Rayco cast aluminum fixture plates are the toughest plates on the market, all of their plates are Hard Coat Anodized for added strength. We offer plates for all size machines and applications. RAYCO CMM FIXTURE has been the leading CMM Fixture brand and in business for 33 years. Features include 570mm x 450mm x 13mm Plate M4 threaded holes spaced apart, 10mm center to center Engraved Numbers on X Axis Engraved Letters on Y Axis