3M 28476, Disc pad Hub, 2-1/2 in 5/8-11 Internal Low Profile, 7000045288 
3M 45094, Roloc Disc Pad TR, Soft 2 in 1/4-20 Internal, 7000045278 
3M 45100, Roloc Disc Pad TR, Hard 1-1/2 in 1/4-20 Internal, 7000045286 
Insize 6990-300A, HEIGHT SCRIBER, 6928640320057
$66.55
Grooved bottom for cylinder.
Two pins to be set against the edge of surface plate.
12″ tall, base is 1.063″ tall, Used for layout
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