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Mitutoyo Dial Bore Gauge for Extra Small Holes, Metric

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Product Specifications
Manufacturer Series Number
Bore Gage
Style Name
Brand Name
System of Measurement

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0.95-1.55mm 0.001mm +/-0.004mm 526-172 B003U9VYB2 yes $1,826.20 Buy Options
0.95-1.55mm 0.01mm +/-0.004mm 526-173 B003U9VYBC Usually ships in 1 to 2 months $2,790.00 Buy Options
0.95-1.55mm N/A +/-0.004mm 526-170 B003M2MDIA Usually ships in 1 to 2 months $2,620.00 Buy Options
1.5-4mm 0.001mm +/-0.004mm 526-162 B003U9VY9E yes $3,720.00 Buy Options
1.5-4mm 0.01mm +/-0.004mm 526-163 B003U9VYA8 Usually ships in 1 to 2 months $3,358.07 Buy Options
1.5-4mm N/A +/-0.004mm 526-160 B003M2O9X2 Usually ships in 1 to 2 months $3,350.00 Buy Options
10-18mm 0.001mm +/-0.004mm 526-125 B003U9VY76 yes $423.87 Buy Options
10-18mm 0.01mm +/-0.004mm 526-127 B003U9VY7Q yes $355.08 Buy Options
3.7-7.3mm 0.001mm +/-0.004mm 526-152 B003U9VY8A yes $2,320.00 Buy Options
3.7-7.3mm 0.01mm +/-0.004mm 526-153 B003U9VY8K Usually ships in 1 to 2 months $2,280.00 Buy Options
3.7-7.3mm N/A +/-0.004mm 526-150 B003M2JCYS Usually ships in 24 hours $1,240.24 Buy Options
7-10mm 0.001mm +/-0.004mm 526-124 B003U9VY6M yes $518.00 Buy Options
7-10mm 0.01mm +/-0.004mm 526-126 B003U9VY7G yes $461.00 Buy Options

Key Features

  • Accurate to + or - 0.004 mm
  • Split ball design for inside diameter measurements and detection of out-of-roundness problems
  • Stainless steel contact points for high wear resistance

Product Description

The Mitutoyo Dial Bore Gauge for Extra Small Holes is accurate to + or - 0.004mm. This direct-measuring gauge uses a split ball design to measure the inside diameter of holes and identify out-of-roundness problems with stainless steel contact points for high wear resistance.

Bore gauges 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 gauges are typically calibrated with a setting ring and come in two types: simple and direct-measuring. Simple bore gauges are used with a caliper to transfer the hole measurement, while the more complex gauges take the measurement directly, and display it through a vernier, dial, or digital display. Bore gauges have a two- or three-point contact, indicating how many points on the gauge head touch the inside of the bore. Two-point contacts are better at measuring ovality, while three-point contacts are used to measure lobing or triangular form error. Pistol-grip bore gauges are used for fast, single-handed operation with repeatable results from one operator to another. Bore gauges can also be used in special applications, such as measuring threads, spline pitch diameters, and deep bores.

Mitutoyo manufactures precision measuring tools, metrology equipment, and related systems. The company, founded in Tokyo in 1934, formed Mitutoyo America Corporation in 1963 with headquarters in Aurora, IL.

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