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Magnetic Base Indicator Holder

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Products > Precision > Measuring     All Starrett products

Magnetic Base Indicator Holder, Starrett

         Made in United States
Magnetic Base Indicator Holder, Starrett
Part Number: 3549
Weight: 1.97 lb

Price: $212.00

In stock
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  • Starrett Magnetic Base with Attachments
  • Starrett catalog number 657AA
  • Powerfull magnetic base holds firmly to steel and iron surfaces
  • Push button turns magnet on or off for quick, one-hand set-up


For use with all Starrett Test, Back-Plunger, AGD, Dial and Miniature-Dial Indicators. Also accommodates similar indicators of other manufacturers.

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Warning Icon WARNING: This product can expose you to lead, which is known to the State of California to cause cancer and/or reproductive harm. For more information go to


   Starrett Magnetic Base Indicator Holder Features

"Magnetic Base Indicator Holder A. No. 657P Magnetic Base. 1 15/16 x 1 5/8 x 1 7/8" (50 x 40 x 48mm). Push-button on/off switch for one-hand operation. Base has three precision ground, magnetic contact points. Grips horizontally, vertically, and upside down. V-step holds base to arbors, shafts, etc. Base has extra 1/4-20 tapped hole on one side for mounting post. Black wrinkle finish on non-working surfaces.
  B. No. 657G Upright Base Post. 3/8" (9.5mm) diameter x 7 7/16" (190mm) length overall. Starrett No. 57S and No. 58S Universal Snugs may also be used.
  C. No. 657S Snug. Two 1/4" (6.3mm) diameter holes. Adapts Nos. 196, 650, and 651 Series Dial Indicators and No. 657Y Indicator Attachment to No. 657X Rod.
  D. No. 657X Rod. 1/4" (6.3mm) diameter x 6" (150mm) long. Accommodates Starrett Nos. 708, 709, 811 and 711F Series Dial Test Indicators and No. 657S Sleeve.
  E. No. 657Y Indicator Attachment. 1/4" (6.3mm) O.D. one end, other end threaded and fits lug backs of all AGD indicators (Starrett Series Nos. 81, 25, 655, 656) and Series No. 80 Miniature Indicators.
  F. No. PT18724 Snug 3/8" (9.5mm) diameter post hole. 1/4" (6.3mm) diameter gripping hole accommodates No. 657X Rod.


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