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Starrett Countersink Gages 689-2Z 100° are offered in three different angles so that the gage sets on the angular side of the countersink, as opposed to a chamfer gage which sets on the top edge of the chamfer. This is an American Made product!


  • Ground surfaces are of hardened tool steel
  • Indicators AGD design
  • 100º Angle
  • Directly reads the large diameter of the countersink
  • Includes set master ring

Metric Gages are available. Please contact us for details.

Starrett 688-2Z Countersink Gage
Range .160-.360"
Dial Reading For 100 Degree Countersinks
Graduations .002"


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Do you have any questions about 100° 689-2Z Starrett Countersink Gage Internal .160-360" Range (Inch) 63707?


100° 689-2Z Starrett Countersink Gage Internal .160-360" Range (Inch) 63707

  • Brand: Starrett
  • Product Code: 689-2Z
  • Condition: New
  • Warranty: 1 Year Manufacturer’s Warranty
  • Availability: SHIPS UPS ONLY
  • $450.00
  • $428.00

Tags: 100°, 689-2z, starrett, countersink, gage, internal, .160-360