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Starrett Chamfer Gauges
With Three-Blade Probe
Make sure the top diameter of a chamfered hole isn’t too big or too small. These gauges are often used as a quality control check after milling, drilling, and reaming. Press the three-blade probe into a chamfered hole and twist slightly to center. Once the blades touch the hole’s slopes, the dial will display the diameter. Zero set these gauges on a flat, ground surface when needed.
Choose a gauge with a measuring angle that’s greater than or equal to the angle of the chamfered hole you’re measuring.
Dial | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Measuring Range | Accuracy | Measuring Increments | Probe Type | Material | Dia. | Face Color | Contact Point Material | Manufacturer Model Number | Each | |
90°-127° Measuring Angle | ||||||||||
| 0"-0.38" | ±0.002" | 0.001" | Three Blade | Black-Oxide Steel | 2 1/4" | White | Steel | 684-1Z | 000000000 | 0000000 |
| 0"-0.5" | ±0.002" | 0.001" | Three Blade | Black-Oxide Steel | 2 1/4" | White | Steel | 684-2Z | 000000000 | 000000 |
| 0"-1" | ±0.002" | 0.001" | Three Blade | Black-Oxide Steel | 2 1/4" | White | Steel | 684-3Z | 000000000 | 000000 |
| 1"-2" | ±0.002" | 0.001" | Three Blade | Black-Oxide Steel | 2 1/4" | White | Steel | 684-4Z | 000000000 | 000000 |