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STARRET - Countersink Gages
Brand: Starret
Model: 687 Series 82º, 688 Series 90º, 689 Series 100º
 
Description:
Starrett Countersink Gages 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 gage directly reads the large diameter of the countersink in .002'' or 0.05 mm increments. A set master ring is furnished with each gage for calibration and setting. Press the button on top of the indicator to firmly depress the gage head into the countersink. When the gage is removed, the indicator reading is held in place until the reset button is activated. All ground surfaces are of hardened tool steel. Indicators are AGD design.
 
Inch Reading Countersink Gages
Range 82º Angle 90º Angle 100º Angle
Catalog No. EDP No. Catalog No. EDP No. Catalog No. EDP No.
.020-.170” 687-1Z 63698 688-1Z 63702 689-1Z 63706
.160-.360” 687-2Z 63699 688-2Z 63703 689-2Z 63707
.360-.560” 687-3Z 63700 688-3Z 63704 689-3Z 63708
.560-.780” 687-4Z 63701 688-4Z 63705 689-4Z 63709
 
Millimeter Reading Countersink Gages with Yellow Dials
0.5-4.3 mm 687M-1Z 65003 688M-1Z 65007 689M-1Z 65011
4-9 mm 687-2Z 65004 688M-2Z 65008 689M-2Z 65012
9-14.2 mm 687-3Z 65005 688M-3Z 65009 689M-3Z 65013
14.2-19.8 mm 687-4Z 65006 688M-4Z 65010 689M-4Z 65014

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