3M 45100, Roloc Disc Pad TR, Hard 1-1/2 in 1/4-20 Internal, 7000045286 
Insize 3203-275A, OUTSIDE MICROMETER, 250-275mm, 6928640304125
$148.44
Graduation 0.01mm
Carbide measuring faces.
Ratchet stop type
Supplied with setting standards (except 0-25mm).
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