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Dorsey Metrology Standard Gage
made in USA
digital electronic bore gage with SPC output

The newest models of Standard Gage style digital electronic bore gages are manufactured in the USA by Dorsey Metrology of New York. The digital indicator used with these gages is made in Japan by Mitutoyo which offers the latest innovations in digital measurement. This has the added advantage that, if the indicator malfunctions, it can be quickly and easily replaced.

These digital bore gages can be zero-set to a master for comparative readings and can also be used for absolute reading by presetting to a master, such as a setting ring. Setting rings are not included and must be purchased separately.

  • Go/NoGo judgment is performed by setting the upper and lower tolerances.
  • Up to three sets of master values and Go/NoGo values can be stored in memory.
  • The minimum hold feature will allow you to rock the gage head through the bore and the display will show the minimum bore size.
  • The .00005" (1µm) digital indicator makes this both an inch and metric bore gage with SPC (RS-232) output.
  • Optional cables allow you to download data to spreadsheets, printers, or dedicated analytic software (see below for details).
  • The gage and its accessories come in a sturdy carrying case.

B5-10105 digital bore gage made in Switzerland shown above.
The new versions are made in USA by Dorsey Metrology (with a
Mitutoyo digital indicator installed)
The Mitutoyo Digimatic Bore gage with an extended range is shown at the bottom of this page.
 

Model No.

inch

Gage Size

metric

Depth

Origin

2016 Price

DS-B5-10102

1.00-1.53"

2

25.5-39

2.5"

USA

inquire

DS-B5-10103

1.50-2.16"

3

38-55

4"

USA

inquire

DS-B5-10104

2.12-3.13"

4

54-79.5

5"

USA

inquire

DS-B5-10104-12

2.12-3.13"

4

54-79.5

12"

USA

inquire

DS-B5-10104-72

2.12-3.13"

4

54-79.5

72"

USA

inquire

DS-B5-10105

3.09-6.13"

5

78.5-156

6"

USA

inquire

DS-B5-10105-12

3.09-6.13"

5

78.5-156

12"

USA

inquire

DS-B5-10105-72

3.09-6.13"

5

78.5-156

72"

USA

inquire

DS-B5-10106

6.00-12.13"

6

152.5-308

6"

USA

inquire

 

Please allow about 2 weeks (3-4 weeks in some cases) since these are custom assembled to order.

You may order online by selecting any linked model number above.

Depth extensions

 

Bore gage depth can be specified when the gage is purchased. The depth extensions are available for bore gage model 2, 3, 4, 5 and 6. The depth which these bore gages can reach is called the "A" length and this length is available from 4" to 72".

Be advised that bore gages with added depth extensions will not function properly in the horizontal position. The weight of the long rod will bend the barrel and sluggishness or jamming will result. If you need to use the bore gage in a horizontal position, let us know in advance so we can advise the manufacturer who will make some factory adjustments (allow extra time).

How does the extra long depth of, say, 72" affect accuracy? Exact figures aren't available but the manufacturer states that "a knowledgeable user can obtain great accuracy".

 

Replacement digital indicator ID-C

 

The Mitutoyo indicators installed in these Dorsey Standard-style bore gages are highly reliable and always "state of the art". The manufacturer offers a one-year warranty against defects and malfunction. After that year is up, however, if your digital display acts up you may have no option but to replace the indicator. It can be purchased separately and works with Dorsey or Mitutoyo bore gages.

  • Mitutoyo Model 543-266B specially designed for bore gage applications
  • Digital indicator has .00005" (1µm) resolution
  • Maximum error = .00012" (when used inedpendently of the bore gage assembly)
  • Data output (cables are optional)

  • Mitutoyo 543-266B Digimatic Indicator ID-C ... List $501.00 ... order online now
  • Price is for digital indicator only and does not include a new housing or handle
  • Substantial Internet discount applies only when ordered online.

For "wireless" connection to your PC you will need the following 3 items: (click on the links for details)

  • 02AZD790F U-Wave connecting cable "F"
  • 02AZD730D U-Wave-T/IP67 Type (transmitter)
  • 02AZD810D U-Wave-R (receiver) (multiple transmitters can be used with just a single receiver)
     

About the Mitutoyo digital bore gage indicator

Mitutoyo provides a superior digital indicator with the newest and most sophisticated features available. A few things need to be taken into consideration:

The top lifting cap as well as the contact point on the indicator must only be hand-tightened. Using pliers applies too much torque on the spindle and you can imagine what that does to the movement inside.

Only the manufacturer and authorized repair centers are allowed to open the digital indicator from the dial side. Otherwise, warranties are null and void.

The instrument's accuracy and other specifications are only guaranteed when the instrument is used at 68°F and [the digital indicator] is mounted vertically, clamped by its stem. — manufacturer's notes paraphrased

The digital indicator will only fit inside the housing designed for digital bore gages. This means that you will not be able to exchange your analog indicator for a digital one without also buying a new housing and handle. If this is your intention, please contact us for details.

 

Bore Gage Repairs

 

Long Island Indicator Service is an authorized repair service, fully qualified to perform professional repairs on Standard Gage digital electronic bore gages including warranty repairs. Note: the electronic indicator is separately available. If it malfunctions you may want to purchase a replacement (see above).

More about bore gages

 

Mitutoyo511521digimaticboregage
 

Mitutoyo 511-521 ABSOLUTE Digimatic LCD Bore Gauge, 1.8-4"/45-100mm Range, 0.00005"/0.001mm Graduation, +/-0.00012"/0.003mm Accuracy

 

For more information on bore gages please see page 8.

 


The above items constitute advertisements on behalf of Amazon.com and are not to be construed as endorsements by Long Island Indicator Service. We strongly believe in buying quality tools and gages, and urge customers to check carefully before making a purchase. If the prices appear unusually low, we suggest proceeding with caution.
 

 

From our reference shelf:


BesTest and TesaTast Indicator Repair Manual … page 177
Starrett 711 Last Word Indicator Repair Manual … page 199
Interapid Indicator Repair Manual …
page 208
Compac Test Indicator Repair Manual ... page 194
 

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14 Sarah Drive — Hauppauge NY 11788 — USA


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This page's most recent revision: 3 APRIL 2017
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Original photographs and content copyright 2017 by JWGrum

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