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Standard Gage and Dorsey dial bore gage - NEW and improved
for bore diameters up to 24"

 

Standard Gage dial bore gages were manufactured in Poughkeepsie, New York until 2002. They made several different bore gage configurations at that time (perpendicular and vertical for example). Only the regular model (shown below) and the 90° right-angle model are still available (see page 114).

The newest models of Standard Gage dial bore gages are manufactured in Switzerland and Germany by Tesa and at least partly assembled in the USA. Tesa is the manufacturer of high-end Etalon, Compac and Interapid gages. Surprisingly, the indicator movement is now supplied by Käfer in Germany. We are pleased to report that these are a substantial improvement over the old style.

As an alternative, you may wish to purchase the Standard-style bore gage made in USA. These have identical measuring heads but the dial indicator will carry the name Dorsey (see below).

  • A new introduction is the rinsable bore gage.
  • Digital versions are also available with the option of converting your dial bore gage into a digital electronic gage.
  • See our page 8 for a comparison with other brands of dial bore gages.
  • Metric dial bore gages are also available.
  • Optional carbide and diamond contacts are now available. See parts on page 72.

In order to keep prices down, most of these gages ship in a simple styrofoam box. However, sturdy wood storage boxes are available for special orders such as bore gages with long depth extensions and for the combi-kits. Wood boxes can also be purchased as an option (see bottom of this page).

A word of caution: it can take anywhere from 2 weeks to 3 months if you're ordering special length extensions. Plan ahead.

standard1a

European-mande Standard Bore Gage model 3 is shown above.

Note that many of our Standard Bore Gages feature extended ranges, beyond those offered in regular catalogs.

The Centralizing Plungers automatically locate the gaging contacts on the bore diameter even when the gage is inserted at an angle.

Standard Gage dial indicator graduations are .0001" or 0.002 mm and each model comes complete with all range extensions and adapters. The gaging depth shown is the maximum depth without depth extensions (available separately). Setting rings are not included, nor are they required.

Standard style bore gages are also available with the Dorsey dial indicator at substantial savings. These versions are made in USA and are designated with the prefix DS in the price chart below. Don't hesitate to order these, since they're every bit as good, they're more likely to be in stock and they're home grown. Repair service and parts are no problem.

All bore gages listed come standard with steel contacts. The gaging contacts and/or the centralizing contacts are also available in carbide or diamond. Please inquire about pricing.

Other gaging depths up to 36" are available for most models.

 

Order no.

Model

Origin

Gaging Depth

Range

Your Price

B1-12100

0

Europe

2.5"

.37-.63"

749.00

B1-12101

1

Europe

2.5"

.63-1.00

729.00

B1-12102

2

Europe

2.5"

1.00-1.53

729.00

DS-B1-12102

2

USA

2.5"

1.00-1.53

650.00

DS-B1-12102-06

2

USA

6"

1.00-1.53

695.00

DS-B1-12102-10

2

USA

10"

1.00-1.53

741.00

B1-12103

3

Europe

4"

1.50-2.16

739.00

DS-B1-12103

3

USA

4"

1.50-2.16

659.00

DS-B1-12103-12

3

USA

12"

1.50-2.16

755.00

B1-12104

4

Europe

5"

2.12-3.13

739.00

DS-B1-12104

4

USA

5"

2.12-3.13

659.00

DS-B1-12104-12

4

USA

12"

2.12-3.13

755.00

B1-12105

5

Europe

6"

3.08-6.13

799.00

DS-B1-12105

5

USA

6"

3.08-6.13

719.00

DS-B1-12105-12

5

USA

12"

3.08-6.13

815.00

B1-12106

6

Europe

6"

6.0-12.13

1059.00

DS-B1-12106

6

USA

6"

6.0-12.13

949.00

DS-B1-12106-12

6

USA

12"

6.0-12.13

1045.00

DS-B1-12106-18

6

USA

18"

6.0-12.13

1085.00

You may order online by selecting any linked model number. Most extra long gaging depth bore gages are not in stock and may require 4-8 weeks for delivery.

Metric sizes are available on page 157.

1-8" Combination Offer

 

Model 2, 3, 4, and 5 combination kit: you will receive one .0001" indicator, four interchangeable measuring heads with steel contacts (from 1.0" to 8") and all the necessary extensions and wrenches, complete in a wooden case. This set will not include any additional depth extensions.

  • With steel contacts (made in Europe) order no. B1-K2345 ... $2259.00
  • With steel contacts (made in USA) order no. DS-B1-K2345 ... $1745.00

Replacement Dial Indicator Unit

 

The unit consists of the Standard .0001" dial indicator, its housing and the holding handle. The measuring unit simply slips into this dial indicator unit and is held in place with a set screw. For details see page 124.

Depth Extensions

 

Bore gage depth can be specified when the gage is purchased. Alternate 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 36" in various intervals, and as much as 72" on special request. However, we would be disinclined to rely on the accuracy of anything over 36". Please inquire about pricing and delivery. Extensions are not available for model 0 and model 1. Think about it: a very thin tubular extension of any significant size—never mind 36"—would never work accurately.

You will not be able to combine depth extensions. You can not, for instance, combine two 10" extensions in the hope of getting a 20" reach.

Extensions can also be purchased at a later time. Although, bought separately, they cost twice as much. The extension replaces the entire middle portion of the bore gage. You will have to insert it between the dial indicator and the measuring head. For example: a 10" extension, although only 9" long will give you a usable measuring depth of 10" when installed. Installation is self evident and not complicated. If you wish to purchase separate extensions, refer to the parts list.

Be advised that bore gages with added depth extensions will probably 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).

Can you switch various depth extensions?

 

It's easy. There are 5 screws to deal with. The set screw at the indicator end. Remove it (don't lose it). The indicator comes off. There are 4 longish screws at the measuring end. This removes the extension housing assembly from the measuring end. Now replace this with the longer, or shorter extension housing. There's no trick in putting it back except that you want to make sure the lever in the measuring head is properly aligned. See the parts list for available extensions.

Contact Points (plungers)

 

Each bore gage comes with a steel gaging plunger and steel centralizing plungers as shown below. Other combinations of carbide and diamond, or Delrin® are also available for sizes 2 through 6.

Unfortunately, sizes 0 and 1 are only available with steel contacts. Diamond and carbide have been discontinued for these.

 

Range extensions

 

Each bore gage comes complete with all necessary range extensions. The range refers to the diameter of the bore to be measured. You may, however, wish to buy them individually to replace damaged or lost pieces. A locknut keeps them securely in place. In some models, two wrenches are required to tighten the extension and locknut. In models size 2 and larger, a separate contact point is screwed into the range extension. This contact point is available in steel, carbide or diamond. Refer to specific models in the spare parts lists.

Refer to the range extension chart on page 13 to determine which extension to use for the diameters being measured.

You can also buy a range extension extender. We kid you not. Bore gage sizes 5 and 6 can have their ranges extended further with a "range extender". These extenders will allow you to go beyond the normal ranges of these bore gages.

For model

Extra range

Part number

Price

Size 5*

from 6.13" to 8"

B0-85952

43.00

Size 6**

from 12.13" to 24.56"

B0-85966

200.00

 

*The extra range extension for Size 5 consists of 1 hex extension which brings your measurable range to 8" total.

**The extra range extensions for Size 6 consists of 6 pieces: three 4 inch hex extensions (when combined, they add up to 12" in range), two 1 inch centralizer extensions, and one contact extension.

Is it possible to combine extensions?

 

Yes, on the range extensions. No, on the depth extensions.

 

Accuracy

 

Accuracy in bore gages is determined solely on the basis of the indicator's performance. For gage sizes 0 and 1, the accuracy is ± 1/2 graduation over the entire range. For gage sizes 2 through 6, the accuracy is ± one graduation. In all cases, repeatability is 1/5 graduation.

For details on bore gage calibration see page 7.

 

Spare Parts

 

Additional spare parts are available for any current model made in Switzerland or the Dorsey version made in USA. Refer to Standard Gage dial bore gage parts lists on page 72.

Standard bore gage repair

 

Long Island Indicator Service is an authorized repair service, fully qualified to perform professional repairs on Standard Gage dial bore gages. See page 30 for details.

 

Standard bore gage wood storage box

 

Standard and Dorsey bore gages ship in styrofoam storage boxes. This keeps the cost down. While the styrofoam boxes are perfectly suitable for shipping and storage of the bore gage, they may not be the most aesthetically pleasing and they are probably not durable enough for the long term. You may want to order a wooden storage case for your new bore gage or you may want to get a new box for the bore gages you already have.

One important detail: these boxes are only suitable for the regular bore gage without any special length extensions. If you have a 36" long bore gage, for instance, it simply won't fit.

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14 Sarah Drive — Hauppauge NY 11788 — USA


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This page's most recent revision: 1 April 2010
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