3M 28473, Roloc D/F Cool Running Disc Pad TR, 4 in x 5/8-11 Internal, FIN, 7000144107 
Insize 4797-200, PROTRACTOR, 7.9×15.7″, 10-170?, 6928640317460
$76.94
Graduation 1?
Made of carbon steel.
Satin chrome plated.
With clamping screw.
The blade is moveable.
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