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High Precision Measurement
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Stainless Steel Construction
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Compact and Portable
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Use a gauge to expand in the hole to be measured, lock it in place, then remove, measure with a micrometer or caliper to determine the final hole size.
Material: Stainless Steel
Range:
5/16 - 1/2 Inch range x 4.20 inch overall
1/2 - 3/4 Inch range x 4.40 inch overall
3/4 - 1-1/4 Inch range x 4.40 inch overall
1-1/4 - 2-1/8 Inch range x 5.85 inch overall
2-1/8 - 3-1/2 Inch range x 5.85 inch overall
3-1/2 - 6 Inch range x 5.85 inch overall