Under uniform spring tension, the plunger of the gage expand from the center to the diameter of the hole or width of slot being measured and then locked in place by a knurled knob, the hole size is found by measuring over the two contact point with a micrometer or caliper.
Shars 5/16"~6" 5 Satin Chrome Finish Long TELESCOPING GAGE 6 PCS Set | 5 Nickel Plated Long Telescoping Gauge 6 pcs Set | Shars 1/8" to 1/2" Small Hole Gage Set Half Ball | Shars 1/8" to 1/2" Small Hole Gage Set Full Ball | Shars 0-6" Premium Outside Micrometer Solid Metal Frame Carbide Tip 6 pcs Set | |
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Price | $21.95$21.95 | $25.95$25.95 | $17.95$17.95 | $18.05$18.05 | $144.95$144.95 |
Order No. | 303-4101 | 303-4116 | 303-4601 | 303-4603 | 303-2653N |