Starrett INTERNAL CHAMFER GAGE, 0-1/2" 684-2Z

These gages directly measure the diameter of chamfered holes. No setting master is necessary. When the three-blade plunger is pressed against a fl at surface, the gage should read the set number stamped on the back of the indicator. In case of wear, the gage may be adjusted to read the proper number. FEATURES  When the three-blade plunger is pressed against a flat surface, the gage should read the set number stamped on the back of the indicator  No setting master is necessary  Internal gages will measure the largest diameter of any chamfer that has an included angle within the range of angles printed on the dial face  Gages are also available with electronic indicators on request  Deluxe Padded Case  All ground surfaces are of hardened tool steel  Indicators are AGD design SPECIFICATIONS  Made in America: Yes  Type: Chamfer Gage  Range (in): 0 - 1/2"  Dial Reading: For 90 -127 Degree Angles