3M 83980, Roloc Disc Pad TR, Extra Hard 4 in 5/8 -11 Internal, 7000119300 
Insize 3128-4, DIGITAL WIDE RANGE THREE POINTS INTERNAL MICROMETER, 2.8-4″/71-101mm, 6928640356674
$1,245.99
Resolution .00005″/0.001mm.
IP54 dust/waterproof.
Buttons: on/off, set, inch/mm, ABS/INC.
Data output. LR44 battery, automatic power off.
Carbide measuring faces. Ratchet stop.
Supplied with extension rods.
Setting rings are included (except part no. 3128-12).
