3M 26109, PPS Series 2.0 Adapter, Type S23, 1/4 Female, 18 Thread NPS, 7100135941 
Insize 4797-100, PROTRACTOR, 3.9×5.9″, 10-170?, 6928640317446
$52.68
Graduation 1?
Made of carbon steel.
Satin chrome plated.
With clamping screw.
The blade is moveable.
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