3M 92313, General Purpose Depressed Center Wheel, T27, 7 in x 1/4 in x 7/8 in, 24, 7000118487, 20 per case 
Insize 3241-2, DEPTH MICROMETER, 0-2″, base 3.996_.669″, 6928640355400
$150.77
Graduation: .001″.
Micrometer head accuracy: ?.00012″.
Rod accuracy: ?[.001+.0005(L/3)]”, L is the measuring range in inch.
Rods with flat end.
Ratchet stop.
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