3M 16573, Accuspray Air Flow Control Valve, 7000042715 
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust 
Insize 4820-230, PITCH GAGE, 4-42TPI, 6928640319235
$16.50
Check the pitch of screw thread.
Accuracy: ?.0028″.
Quantity of leaves: 30
Made of medium carbon steel
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