Micrometals Discs Micrometals Products Index Discs MICROMETALS Part No. OD in/mm CBin/mm ID in/mm T in/mm D45-1040 1.420/36.1 .500/12.7 .172/4.37 .156/3.96 D59-1040 1.845/46.9 .635/16.1 .188/4.78 .187/4.75 D80-2040 2.500/63.5 .755/19.2 .255/6.48 .187/4.75 Micrometals Discs