3M 83497, Hookit Marine Fairing Board, Rigid, 4 1/2 in x 30 in, 7000045684 
Insize 7126-6, RIGID RULE, 6″, 6928640385186
$2.64
Graduation 1/64″ and 1/32″ on front face, 1/16″ and 1/8″ on back face
4R graduation.
Made of stainless steel.
Non-glare surface
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