Inside Micrometers

Inside measurement

Tools for measuring bores, holes, grooves, and internal dimensions with the right contact geometry.

This branch covers Holtests, inside micrometers, bore gages, and related tools used when internal features need more confidence than a visual check or general-purpose caliper can provide.

For manufacturing and repair

Useful when bore size, taper, roundness tendency, or internal fit affects performance and acceptance.

For R&D and fixture work

Helps document internal features in machined parts, holders, prototypes, and test fixtures.

For labs that need referenceable results

Inside measurement tools often need rings, masters, or a repeatable setup method so another user can verify the result.

What these products do

Holtests, inside micrometers, and bore gages reach internal geometry that ordinary external tools cannot measure reliably, with each family solving a different access and repeatability problem.

Quote, purchase, and standard review

Macroscopic Solutions can help confirm the product family, compatible accessories, data-output workflow, freight or delivery needs, and whether the item should be purchased online or handled through quote review before invoicing.

Showing all 11 results

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  Mitutoyo Digimatic Tubular Inside Micrometers Series 337 – Extension-Rod Type

  $1,100.00 – $1,670.00Price range: $1,100.00 through $1,670.00
  Select options This product has multiple variants. The options may be chosen on the product page
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  Mitutoyo Digimatic Tubular Inside Micrometers Series 339 – Extension-Pipe Type

  $1,100.00 – $1,880.00Price range: $1,100.00 through $1,880.00
  Select options This product has multiple variants. The options may be chosen on the product page
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  Mitutoyo Inside Micro Checker Series 515

  $3,090.00 – $4,860.00Price range: $3,090.00 through $4,860.00
  Select options This product has multiple variants. The options may be chosen on the product page
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  Mitutoyo Inside Micrometers Series 141 – Interchangeable-Rod Type

  $99.39 – $723.00Price range: $99.39 through $723.00
  Select options This product has multiple variants. The options may be chosen on the product page
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  Mitutoyo Inside Micrometers Series 145 – Analog Caliper Type

  $316.00 – $733.00Price range: $316.00 through $733.00
  Select options This product has multiple variants. The options may be chosen on the product page
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  Mitutoyo Inside Micrometers Series 345 – Digital Caliper Type

  $719.00 – $767.00Price range: $719.00 through $767.00
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  Mitutoyo Tubular Inside Micrometers Series 133 – Micrometer Sets

  $955.00 – $2,640.00Price range: $955.00 through $2,640.00
  Select options This product has multiple variants. The options may be chosen on the product page
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  Mitutoyo Tubular Inside Micrometers Series 133 – Single-Rod Type

  $235.00 – $373.00Price range: $235.00 through $373.00
  Select options This product has multiple variants. The options may be chosen on the product page
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  Mitutoyo Tubular Inside Micrometers Series 137 – Extension-Rod Type

  $174.00 – $1,050.00Price range: $174.00 through $1,050.00
  Select options This product has multiple variants. The options may be chosen on the product page
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  Mitutoyo Tubular Inside Micrometers Series 139 – Extension-Pipe Type

  $156.00 – $1,600.00Price range: $156.00 through $1,600.00
  Select options This product has multiple variants. The options may be chosen on the product page
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  Mitutoyo Tubular Inside Micrometers Series 140 – Extension-Pipe Type

  $3,760.00 – $8,510.00Price range: $3,760.00 through $8,510.00
  Select options This product has multiple variants. The options may be chosen on the product page