648-6 Depth Gage Base with Stem Collet 65851

6" long depth gage base with 25SC38 Stem Collet to fit 3/8” (9.5mm) stem dia. (as per AGD). Split bushings for adapting stem diameter are available but not included.

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  • Additional tapped holes for special collet positioning.
  • Hardened Steel.
  • 3/4” wide base.


  • : Fits all AGD indicators including Starrett 25,80,81,642,642M,644,644M,655,656,647,647M lines.
  • : Top of collet to bottom edge of 648 base: 1-1/4”.

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    California Proposition 65 Warning

      WARNING: This product contains lead, a chemical known to the State of California to cause birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov