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

"American Made" light weight test indicators

With a tilted dial similar to Swiss made Interapid indicators. Contact point angle must be held at 15° angle to work surface for accurate reading. Plastic bezel and crystal ride on a rubber o-ring making these easy to remove and replace without special tools. Three dovetails. Contact point length can be adjusted for calibration with a simple set screw.

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

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).

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.

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

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.

 



 

 

from our reference shelf


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

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: 18 FEBRUARY 2017
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Original photographs and content copyright 2017 by JWGrum

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