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Starrett 708A - 709A - 708B - 709B Test Indicator

"American Made" light weight test indicators

With an easy to read tilted dial similar to Swiss made Interapid indicators. The contact point angle must be held at a 15° angle to the work surface for accurate reading. This feature sets it apart from all other test indicators (except Interapid) and can prove very useful. If your shop uses other brands of indicators as well, be sure to instruct everyone to heed the 15-degree angle requirement. Plastic bezel and crystal ride on a rubber o-ring making these easy to remove and replace without special tools. They can be bought as replacement parts directly from Starrett or from Starrett distributors. Three dovetails can accept any mounting stem or holder even if they are not Starrett. Contact point length can be adjusted for calibration with a simple set screw although this is not needed on new indicators. The right half of the dial is shaded with a yellow-orange stripe for use with a mirrored set-up.

Indicators come supplied with:

  • 2 mm diameter carbide contact point
  • custom fitted box which will also accommodate attachments
  • attachments included for some models (see chart below)
  • certificate of calibration not included
  • single or multiple revolutions (see chart below)
  • assorted dial colors for some models (see chart below)
  • additional selection of contact points (see page 21)

Attachments (included with certain models, see chart below):

  • dovetail body clamp
  • tool post holder
  • swivel post snug with dovetail indicator clamp
  • snug and rod unit
Starrett709A

Graduation

Range

Dial

Revolution Counter

Contact Point

Attachments

Dial Color

Model No.

Starrett No.

Internet Discount

.0001"

.010"

0-5-0

No

20 mm

none

White

708A

708AZ

check

.0001"

.010"

0-5-0

No

20 mm

none

Red

708A

R708AZ

check

.0001"

.010"

0-5-0

No

20 mm

none

Black

708A

B708AZ

check

.0001"

.010"

0-5-0

No

20 mm

Yes

White

708A

708ACZ

check

.0001"

.010"

0-5-0

No

20 mm

Yes

Red

708A

R708ACZ

check

.0001"

.010"

0-5-0

No

20 mm

Yes

Black

708A

B708ACZ

check

.0001"

.020"

0-5-0

Yes

20 mm

none

White

708B

708BZ

check

.0001"

.020"

0-5-0

Yes

20 mm

Yes

White

708B

708BCZ

check

.0005"

.030"

0-15-0

No

20 mm

none

White

709A

709AZ

check

.0005"

.030"

0-15-0

No

20 mm

none

Red

709A

R709AZ

check

.0005"

.030"

0-15-0

No

20 mm

none

Black

709A

B709AZ

check

.0005"

.030"

0-15-0

No

20 mm

Yes

White

709A

709ACZ

check

.0005"

.030"

0-15-0

No

20 mm

Yes

Red

709A

R709ACZ

check

.0005"

.030"

0-15-0

No

20 mm

Yes

Black

709A

B709ACZ

check

.0005"

.050"

0-25-0

No

34 mm

none

White

709A

709ALZ

.0005"

.050"

0-25-0

No

34 mm

Yes

White

709A

708ALCZ

.0005"

.060"

0-15-0

Yes

20 mm

none

White

709B

709BZ

check

.0005"

.060"

0-15-0

Yes

20 mm

Yes

White

709B

708BCZ

check

Starrett 708A - 709A - 708B - 709B Indicator Contact Points

Length

Contact Points for 708A - 708B - 709A - 709B

Order / Price

20 mm

carbide contact point .015" diameter $21.50

MTC58-01

order now

20 mm

carbide contact point .031" diameter $19.50

MTC58-02

order now

20 mm

carbide contact point .080" diameter $19.50 (PT23914)

MTC58-04

order now

These contact points have 1-64 threads

Repair parts are not available from us because we are not Starrett distributors.

Accuracy

According to the Starrett web site, these gages "meet or exceed ISO accuracy requirements" but they do not specify or publish what those accuracies are.

Repairs

The Starrett 708 and 709 series of test indicators have some idiosyncrasies that can make these repairs challenging. Unless you have experience and tools, we strongly urge you to leave this in the hands of professionals. Only the clear plastic cover (crystal and bezel assembly) and the contact points are easily replaced by the end-user (refer to notes at bottom of this page). Can Long Island Indicator Service repair Starrett gages? Take a look at page 30 to see what we can and can not do.

Spare parts are not available from us because we are not Starrett distributors. If you can not find a distributor who is willing to sell parts (there is little money to be made selling parts) then you can contact Starrett directly. Check their web site for a parts breakdown and contact information.

It is important to remember that these Starrett indicators are accurate when the contact point has an angle of about 10 to 15 degrees to the test surface. If, during calibration, you find that you are losing or gaining distance (even though the contact angle is correct) you will need to shorten or lengthen the contact point. The longer the point is, the less travel it will register. To do this, you will have to adjust the set screw which you will see on the opposite side of the pivot. Loosen the contact point first and then adjust the set screw. Now you can tighten the contact point again. Quite a bit of trial and error will get you the results you're after. If this is too much of a headache, next time don't buy Starrett.

Repair hint

If you need to remove the guts from the body you will have to remove adjusting screw #8 first. Similarly, if you need to remove the dial head assembly #11 you will have to remove (or at least loosen significantly) adjusting screw #36 on the cover side. You can only find this screw by removing the cover. A very small jeweler's screw driver will be required.

How do the Starrett indicators compare to Mitutoyo, Brown & Sharpe and other manufacturers? Take a look at
page 37



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.

 

Long Island Indicator Companion Reference Book, 2nd Edition … page 178
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
Mitutoyo Test Indicator Repair Manual … page 102
 

www.longislandindicator.com

Long Island Indicator Service Inc
14 Sarah Drive — Hauppauge NY 11788 — USA


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This page's most recent revision: 5 NOVEMBER 2017
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Original photographs and content copyright 2017 by JWGrum

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