657CZ Magnetic Base and Post Assembly with 196B1 Indicator, PT18718 Snug, 3 Contact Points, Contact Point Adaptor and Wood Case

657 Magnetic Bases and Holders
Magnetic Base Indicator Holder Set

The Starrett 657A Magnetic Indicator Holder Set is put together for your ordering convenience, but you can mix and match other Starrett test or back-plunger indicators and attachments with the 657A Magnetic Base and Swivel Post Assembly to suit your needs. Base/Post Assembly with 196B1/PT18718/Points/Adapter, Case.

Contact Starrett


  • Three precision ground magnetic contact surfaces (plus V-step)
  • Powerful, permanent magnetic base holds firmly to steel or iron surfaces - horizontally, vertically, upside-down
  • The swivel post assembly on these holders provides universal adjustment in both horizontal and vertical planes
  • With Finished Wood Case


  • Made in America: Yes

3D CAD Files / Exploded Parts Diagram

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Product Testimonials

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    • John S. (6/29/2020)
      Rock solid magnet. This is it, nothing compares for quick set-up and accurate results. After all, it's made in America by Starrett

California Proposition 65 Warning

    WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov