Bore Gages
2 - POINT CONTACT GAGING
- Variable Bore Gage
- 2-Point Contact, directly opposite Ideal for detecting out-of-roundness
- 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
- Available for .090" to 15.9999" (2.286MM to 406.397MM) diameter holes
- Ranges from ±.003" / ±.075MM to / ±.030" / ±.750MM
- Contacts hardened to 60-62Rockwell C
- Can be Chrome Plated or fit with Carbide Inserts to extend wear factor
- Self-compensating for wear
- Usable as a totally mechanical gage or in an electronic set-up
- Simple, accurate, time proven design
- Easily disassembled for quick change over and cleaning
- English or Metric
Expansion Plug options are available to increase the usefulness and effectiveness of the expansion plugs. Contact our engineering department for advice concerning a specific gaging application you must resolve.
NOTE: GAGE OPTIONS COULD AFFECT STANDARD GAGE SPECIFICATIONS/DIMENSIONS
* Click on images below for larger view.
(provides average measurements)
Ideal for checking tri-lobed bores, interrupted I.D.’s, or thin walled parts.
Three-Segment design (available for .1700” and above diameters) produces movement in three planes, and maintains true 120° contact through entire measuring range.

- Permits checking for 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
- English or Metric
- Ranges from ±.003” / ±.075MM to ±.018” / ±.450MM
- Contacts hardened to 60-62 Rockwell C
- Can be Chrome Plated or fit with Carbide Inserts to extend wear factor
- Self - compensating for wear
- Usable as a totally mechanical gage or in an electronic set-up
- Suitable for use at the machine or in an inspection environment
- Easily disassembled for quick change over and cleaning
Expansion Plug options are available to increase the usefulness and effectiveness of the expansion plugs. Contact our engineering department for advice concerning a specific gaging application you must resolve.
Gage Options
NOTE: GAGE OPTIONS COULD AFFECT STANDARD GAGE SPECIFICATIONS / DIMENSIONS.

Certification
Conforms to Comtorgage specifications.

(Expansion Plug / Plug Checker )
* Click on image above for larger view.
Calibrations performed on equipment traceable to N.I.S.T.
Measurement and method of recording conforms ISO / IEC 17025.
Testing Equipment for Expansion Plugs