688-3Z Starrett 90 Degree Countersink Gauge: .360-.560

The Starrett 688-3Z Countersink Gauge has the following specifications:

• Range: .360-.560
• Graduations: .002
• Angle: 90
• EDP: 63704

Starrett Countersink Gauges are offered in three different angles so that the gauge sets on the angular side of the countersink, as opposed to a chamfer gauge which sets on the top edge of the chamfer.

This gauge directly reads the large diameter of the countersink in .002 or 0.05 mm increments.

A set master ring is furnished with each gauge for calibration and setting. Press the button on top of the indicator to firmly depress the gauge head into the countersink. When the gauge 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.

Features:

• Ground surfaces are of hardened tool steel
• Indicators AGD design
• 82, 90 and 100 Angles
• Directly reads the large diameter of the countersink
• Includes set master ring