You are bidding on a Comtorgage .0001" Resolution +/- .006" Bore Gage Indicator, No. CM2 - Recently Calibrated.
Each Bid is for ONE Item.
The Comtorgage® is designed to make comparative type measurements of bore diameters and has the capability of checking other types of part characteristics when equipped with the proper features.
Comtorgage bore gages must be retracted to enter a bore, and they are self-centering and self-aligning as the gage is expanded into the bore. The expansion plug expands using a spring-loaded outward force, and a locking taper "locks in" the measurement reading. The spring-loaded contact forces are uniform from part-to-part, which assures repeatable measurements, even with operators of different skill levels.
A Comtorgage bore gage can measure geometric conditions such as taper, ovality, hourglass, or barrel shape conditions in your parts. However, the gage must be retracted and repositioned in the bore to do this because of the locking taper in the measurement transfer system. Simply rotating or sliding the gage without retracting the contacts will cause unnecessary wear to the contacts. However, a Comtorgage does not require the gage to be rocked over-center like many dial bore gages.
Variable Bore Gage - 2 3/4" Diameter face
Permits checking for ovality, taper, barrel shape, hourglass or bell mouth
Dedicated to one size for production purposes, no errors in set-up
Comparative system, set to master
Self-centralizing and self-aligning
Built-in back taper assures contact at front tips
Capable of measuring to extreme bottom of bore
Contact is under constant spring load
Measuring is independent of differing operator skills
Contacts hardened to 60-62Rockwell C
Self-compensating for wear
Simple, accurate, time proven design
Easily disassembled for quick change over and cleaning
For more Information:
http://www.comtorgage.com/products/bore-gages/
http://netgages.com/Pages/comtorgage_general.html
I will fully guarantee this item - New Cost $250.
We have lots of quality inspection tools available - see my other auctions.
Shipping in the Continental US is $7.90 - I have very competitive rates for International bidders that are always welcome. 
