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    1 Product

    Starrett Small-Bore Gauges

    Image of Product. Full-Ball Gauge. Front orientation. Contains Inset. Bore Gauges. Starrett Small-Bore Gauges, Full-Ball.

    Full-Ball

    Gauge

    Measure the diameter of small holes, grooves, and recesses. The end of these gauges has a 360° contact surface that’s easier to center in tight spaces than anvils or spring-loaded contacts. Use them to measure slots and bores in precision parts, such as electronics, where small size deviations can cause inefficiencies.
    Insert the probe into a bore and turn the knob on the handle to expand the contacts. To find the bore diameter, use a micrometer to measure the distance across the contacts.
    Full-Ball—Full-ball gauges are best for deep bores. They’re less likely than half-ball gauges to tilt within the bore, which helps to avoid skewed measurements caused by placing the gauge off-center.
    Distance Measured
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    Each
    Full-Ball Small Bore
    0.2" to 0.3"2 1/2"Steel829B2100A2000000
    Starrett Small-Bore Full-Ball Gauge, Model 829B with 0.2" to 0.3" Measuring Range
    EachIn stock
     
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