Description
They require a slightly different technique to the telescopic gauges, the small hole gauge is initially set smaller than the bore to be measured.
It is then inserted into the bore and adjusted by rotating the knurled knob at the base, until light pressure is felt when the gauge is slightly moved in the bore.
After being withdrawn the gauge is then removed and measured with the aid of a micrometer.
Individual Sizes
| Item No. | Description | Sizes |
|---|---|---|
| MT171-A | Small Hole Gauge | 3mm to 5mm (.125″ to .200″) |
| MT171-B | Small Hole Gauge | 5mm to 7.5mm (.20″ to .30″) |
| MT171-C | Small Hole Gauge | 7.5mm to 10mm (.30″ to .40″) |
| MT171-D | Small Hole Gauge | 10mm to 13mm (.40″ to .50″) |
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