3M 02140, Fibre Disc Backup Pad, TN Quick Change , 4-1/2 in x 5/8-11 Internal, 7000045746 
Insize 4797-300, PROTRACTOR, 11.8×23.6″, 10-170?, 6928640317484
$149.22
Graduation 1?
Made of carbon steel.
Satin chrome plated.
With clamping screw.
The blade is moveable.
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