Dynabrade 78423 4-1/2" Dia. x 3/8" Very Fine DynaBrite Surface Conditioning Disc, 25/pack 
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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