Standard Abrasives 709700, A/O Straight Cartridge Roll, 1/4 in x 1-1/2 in x 1/8 in 320, 7100080013 
Insize 4799-1120, PROTRACTOR, 4.7×5.9″, 0-180?, 6928640317408
$39.45
Graduation 1?
Made of stainless steel
Satin chrome plated scale.
With clamping screw.
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