Starrett 82CZ Dial Bore Gauge Complete Set, 0.0001" Graduation, 0.560-1.565" Total Range, 2-1/2" And 5" Maximum Bore Depth by Starrett
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Review & Description
The Starrett 82CZ bore gage complete set has a total range of 0.560 to 1.565” and graduation of 0.001”, with eight hard-chrome plated, polished probes of varying length for flexibility and accuracy. Measurement is taken by comparison, so a reference standard should be used, such as a gage block, setting ring, or micrometer (sold separately). This bore gage can be used for testing tolerance without removing the workpiece from a machine. The split-ball contact is self-centering, while the two-point contact is useful for detecting hole geometry problems such as taper, bell-mouth, and out-of-roundness.
Bore gages measure holes, or bores, in a workpiece. They can measure the interior diameter of a hole at any depth, while internal micrometers can only measure to the depth of their teeth. Bore gages are typically calibrated with a setting ring. Bore gages come in two types, one simple, and the other direct-measuring. Simple bore gages are used with a caliper to transfer the hole measurement, while the more complex gages take the measurement directly, and display the measurement through a vernier, dial, or digital display. Bore gages have a two- or three-point contact, which indicates how many points on the gage head touch the inside of the bore. Two-point contacts are better at measuring ovality, while three-point systems are used to measure lobing, or triangular form error. Pistol-grip bore gages are used for fast, single-handed operation with good repeatability from one operator to another. Bore gages, regardless of type, can be used in some special applications, such as measuring threads, spline pitch diameters, and deep bores.
The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company was founded in 1880, and is headquartered in Athol, MA.
What’s in the Box?
- Starrett 82CZ bore gage body and actuating rod
- Dial indicator
- 0.560 to 0.690” probe, maximum bore depth 2-1/2”
- 0.685 to 0.815” probe, maximum bore depth 2-1/2”
- 0.810 to 0.940” probe, maximum bore depth 2-1/2”
- 0.935 to 1.065” probe, maximum bore depth 5” (including insertion of gage body into bore)
- 1.060 to 1.190” probe, maximum bore depth 5” (including insertion of gage body into bore)
- 1.185 to 1.315” probe, maximum bore depth 5” (including insertion of gage body into bore)
- 1.310 to 1.440”probe, maximum bore depth 5” (including insertion of gage body into bore)
- 1.435 to 1.565” probe, maximum bore depth 5” (including insertion of gage body into bore)
- Two adjusting wrenches
- Finished wood case
Product Details
- Amazon Sales Rank: #2331 in BISS
- Brand: Starrett
- Model: 82CZ
- Number of items: 1
Features
- Total range of 0.560 to 1.565" and graduation of 0.001", with eight hard-chrome plated, polished probes of varying length for flexibility and accuracy
- Measurement is taken by comparison, so a reference standard should be used, such as a gage block, setting ring, or micrometer (sold separately)
- Test tolerance without removing the workpiece from a machine
- Split-ball contact is self-centering
- Two-point contact is useful for detecting hole geometry problems such as taper, bell-mouth, and out-of-roundness
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