3M 33443, Cubitron II File Belt, 36+, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100033184, 10 belts per carton, 5 cartons per case 
Insize 4820-230, PITCH GAGE, 4-42TPI, 6928640319235
$15.16
Check the pitch of screw thread.
Accuracy: ?.0028″.
Quantity of leaves: 30
Made of medium carbon steel
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$15.16
Check the pitch of screw thread.
Accuracy: ?.0028″.
Quantity of leaves: 30
Made of medium carbon steel