Tube Guides can be Diamond Polished either on the Outside or the Inside (bore)

          We define the Tube as a circular enclosure of aspect ratio < 1.0. Tube Guides can be used to guide the wire on the outside, or through the bore. The former serves the function of a Rod Guide with a through hole to facilitate fixation or attachment. The later is secured on the outside using the bore as the wear bearing surface, including the entrance and the exit. In this case diamond polishing comes into play to reduce friction, which upgrades wire quality and enhances the service life. Photo below depicts a semi-finished and a diamond lapped tube bore surface, all bisected.                                                          

             COSMOS keeps Tube Guides on inventory in SF (semi- finished), to be Diamond Polished, either on the O. D. or the I. D., upon request. We also offer to reduce the dimension of the O. D. to fit your machine, provided the total reduction does not exceed 0.10 mm on each side, while the minimum wall thickness remains at 0.20 mm.To view the Tube Guides available from inventory, please click at :

                                COSMOS INVENTORY OF TUBES IN ASCENDING ORDER OF O. D.

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