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COSMOS offers Rods in 2 Grades
COSMOS Wire Guide Rods constituted of ultra hard materials are available in 2 grades:
Guide grade
Gage grade
The grades vary in the degree of manufacturing tolerances, as tabulated:

or in Geometric Characteristic Symbols:

Rod Guides Available from Inventory
COSMOS keeps Rods on inventory in Guide Grade, which can be processed to Gage Grade upon request. Also offered is O. D. reduction service of the guide grade rods, provided the total reduction does not exceed 0.20 mm, or 0.10 mm on each side. Rods in DL finish cannot be reduced in O. D.
To view the available dimensions, please click :