This is the original Mitutoyo Series 511 bore gage that inspired a large number of copycat designs. Able to withstand tough environments while delivering the accuracy and value you expect from Mitutoyo products.
There is no mistaking the quality and durability of this gage!
One of the World's most popular Cylinder Bore Gages
Carbide-tipped contact points for durability
The dial indicator is protected by a rugged shroud
Optional extension rods can be attached for measuring deep holes
Accuracy: 2μm / .00008”
Indication stability: 1μm / .00004”
Graduation Available: 0.01mm, 0.001mm, .0005” or .0001”