Filter by
Probe Type
Manufacturer Model Number
System of Measurement
Distance Measured
Manufacturer
DFARS Specialty Metals
Export Control Classification Number (ECCN)
REACH
RoHS
Manufacturer Series
Container Type
Number of Gauges
Measures
Material
Starrett Small-Bore Gauge Sets
Half-Ball Gauge Set
Check a variety of hole, groove, and slot diameters. Each gauge in these sets has a different measuring range. 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.
Half-ball gauges are best for measuring near the bottom of flat, shallow bores.
| Measuring Range | Material | Number of Gauges | Includes | Manufacturer Model Number | Each | |
Half-Ball Small Bore | ||||||
|---|---|---|---|---|---|---|
| 0.125"-0.5" | Steel | 4 | One half-ball gauge with 0.125"-0.200" measuring range and 2" max. depth One half-ball gauge with 0.200"-0.300" measuring range and 3" max. depth One half-ball gauge with 0.300"-0.400" measuring range and 3" max. depth One half-ball gauge with 0.400"-0.500" measuring range and 3" max. depth | S831EZ | 000000 | 0000000 |