Bore Gauges
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Central Tools® - SAE Small Hole GaugeSAE Small Hole Gauge by Central Tools®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help you maintain precision...Designed to help you get your job done rightProvides the ultimate in functionality$26.34 - $79.18Availability Varies - Depends on Product Options - Central Tools® - SAE Telescoping GaugeSAE Telescoping Gauge by Central Tools®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help you maintain precision...Designed to help you get your job done rightProvides the ultimate in functionality$25.37 - $40.22Availability Varies - Depends on Product Options
- Fowler High Precision® - X-Tender-E™ SAE and Metric Digital Bore Gauge SetX-Tender-E™ SAE and Metric Digital Bore Gauge Set by Fowler High Precision®. All the same benefits included in the X-Tender Dial Bore Gage are now available with an electronic indicator providing inch/metric reading capability. Preset...Carbide anvilsEasily adjustable$256.96 - $442.77Availability Varies - Depends on Product Options
- Mitutoyo® - 155 Series™ SAE Telescoping Gauge155 Series™ SAE Telescoping Gauge by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help you maintain...Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)With a knurled clamp$28.86 - $46.73In Stock - Ships within 24 hrs
- Mitutoyo® - 155 Series™ SAE Telescoping Gauge Set155 Series™ SAE Telescoping Gauge Set by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help you...Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)Has a knurled clamp$122.44 - $199.34In Stock - Ships within 24 hrs
- Mitutoyo® - 177 Series™ Digital Absolute Snap Bore Gauge Setting Ring177 Series™ Digital Absolute Snap Bore Gauge Setting Ring by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is...Used for quick and accurate setting of dial bore gages, Holtest and inside micrometersIf a setting ring of an optimal size is prepared, it can be used for calibration$136.51 - $1,095.29Availability Varies - Depends on Product Options
- Mitutoyo® - 368 Series™ SAE Mechanical Three-Point Internal Type II Micrometer Holtest368 Series™ SAE Mechanical Three-Point Internal Type II Micrometer Holtest by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your...Has three contact points made of alloyed steelMeasurement can be taken closer to the bottom of the blind bore$516.35 - $1,204.52Availability Varies - Depends on Product Options
- Mitutoyo® - 368 Series™ SAE Mechanical Three-Point/Two-Point Internal Micrometer Holtest368 Series™ SAE Mechanical Three-Point/Two-Point Internal Micrometer Holtest by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your...Highly durable because of carbide-tipped contact pointsOptional Setting Rings for zero point adjustments$564.94 - $938.82In Stock - Ships within 24 hrs
- Mitutoyo® - 468 Series™ SAE and Metric Digital IP65 Three-Point Internal Micrometer468 Series™ SAE and Metric Digital IP65 Three-Point Internal Micrometer by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your...TiN coated measuring contact points provide excellent durability and impact resistance and allow the instrument to measure to the bottom of a blind holeLarge LCD readout$1,712.12 - $4,386.10Availability Varies - Depends on Product Options
- Mitutoyo® - 468 Series™ SAE and Metric Digital Three-Point Internal Individual Micrometer Holtest468 Series™ SAE and Metric Digital Three-Point Internal Individual Micrometer Holtest by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up...Large LCD readoutTiN-coated contact points provide excellent durability and impact resistance and allow the instrument to measure to the bottom of a blind hole.(up to 100mm/4"models)$1,159.53 - $2,608.94Availability Varies - Depends on Product Options
- Mitutoyo® - 511 Series™ SAE Dial Standard Type Bore Gauge511 Series™ SAE Dial Standard Type Bore Gauge by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help...The dial indicator is fully protected by a rugged coverOptional extension rods can be attached for measuring deep holes$255.40 - $282.78In Stock - Ships within 24 hrs
- Mitutoyo® - 568 Series™ SAE and Metric Digital Absolute Borematic Snap Bore Gauge568 Series™ SAE and Metric Digital Absolute Borematic Snap Bore Gauge by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley....TiN-coated measuring contact points provide excellent durability and impact resistance and allow the instrument to measure to the bottom of a blind holeTiN-coated measuring contact points provide excellent durability and impact resistance and allow the instrument to measure right to the bottom of a blind hole$1,540.00 - $1,906.28Availability Varies - Depends on Product Options
- Mitutoyo® - 568 Series™ SAE and Metric Digital Absolute Borematic Snap Bore Gauge Set568 Series™ SAE and Metric Digital Absolute Borematic Snap Bore Gauge Set by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your...TiN-coated measuring contact points provide excellent durability and impact resistance and allow the instrument to measure to the bottom of a blind holeTiN-coated measuring contact points provide excellent durability and impact resistance and allow the instrument to measure right to the bottom of a blind hole$2,319.06 - $3,206.82In Stock - Ships within 24 hrs
- Central Tools® - 0.125 to 0.2" SAE Small Hole Gauge (4311)0.125 to 0.2" SAE Small Hole Gauge (4311) by Central Tools®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help...Designed to help you get your job done rightProvides the ultimate in functionality$26.34In Stock - Ships in 24 to 48 hrs
- Central Tools® - 1-1/4 to 2-1/8" SAE Telescoping Gauge (4352)1-1/4 to 2-1/8" SAE Telescoping Gauge (4352) by Central Tools®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help...Designed to help you get your job done rightProvides the ultimate in functionality$32.14In Stock - Ships in 24 to 48 hrs
- Central Tools® - 2-1/8 to 3-1/2" SAE Telescoping Gauge (4353)2-1/8 to 3-1/2" SAE Telescoping Gauge (4353) by Central Tools®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help...Designed to help you get your job done rightProvides the ultimate in functionality$36.55In Stock - Ships in 24 to 48 hrs
- Central Tools® - 3-1/2" to 6" SAE Telescoping Gauge (4354)3-1/2" to 6" SAE Telescoping Gauge (4354) by Central Tools®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help...Designed to help you get your job done rightProvides the ultimate in functionality$40.22In Stock - Ships in 24 to 48 hrs
- Central Tools® - 3/4 to 1-1/4" SAE Telescoping Gauge (4351)3/4 to 1-1/4" SAE Telescoping Gauge (4351) by Central Tools®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help...Designed to help you get your job done rightProvides the ultimate in functionality$28.04In Stock - Ships in 24 to 48 hrs
- Central Tools® - 5/16 to 1/2" SAE Telescoping Gauge (4349)5/16 to 1/2" SAE Telescoping Gauge (4349) by Central Tools®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help...Designed to help you get your job done rightProvides the ultimate in functionality$25.37In Stock - Ships in 24 to 48 hrs
- Central Tools® - 6-piece SAE Telescoping Gauge Set (6554)6-piece SAE Telescoping Gauge Set by Central Tools®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed to help you...Self centering for accuracyKnurled lock handle$100.80In Stock - Ships in 24 to 48 hrs
- Fowler High Precision® - 5/16 to 6" SAE Steel Telescoping Gauge Set (72-470-006)5/16 to 6" SAE Steel Telescoping Gauge Set by Fowler High Precision®. Another great tool for easy and accurate measurements. Under spring tension, the plungers of the gage expand from the center to the size of the hole being measured...Contact points are constructed of hardened tool steel, precision groundDouble action rigid handle with self-centering feature for quick checking of inside measurements$67.86In Stock - Ships in 24 to 48 hrs
- Mitutoyo® - 155 Series™ 0.313 to 0.5" SAE Telescoping Gauge (155-121)155 Series™ 0.313 to 0.5" SAE Telescoping Gauge (155-121) by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is...Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)With a knurled clamp$28.86In Stock - Ships within 24 hrs
- Mitutoyo® - 155 Series™ 0.5 to 0.75" SAE Telescoping Gauge (155-122)155 Series™ 0.5 to 0.75" SAE Telescoping Gauge (155-122) by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is...Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)With a knurled clamp$32.14In Stock - Ships within 24 hrs
- Mitutoyo® - 155 Series™ 0.75 to 1.25" SAE Telescoping Gauge (155-123)155 Series™ 0.75 to 1.25" SAE Telescoping Gauge (155-123) by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is...Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)With a knurled clamp$33.90In Stock - Ships within 24 hrs
- Mitutoyo® - 155 Series™ 2.125 to 3.5" SAE Telescoping Gauge (155-125)155 Series™ 2.125 to 3.5" SAE Telescoping Gauge (155-125) by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is...Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)With a knurled clamp$41.60In Stock - Ships within 24 hrs
- Mitutoyo® - 155 Series™ 3.5 to 6" SAE Telescoping Gauge (155-126)155 Series™ 3.5 to 6" SAE Telescoping Gauge (155-126) by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed...Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)With a knurled clamp$46.73In Stock - Ships within 24 hrs
- Mitutoyo® - 155 Series™ 4-piece SAE Telescoping Gauge Set (155-907)155 Series™ 4-piece SAE Telescoping Gauge Set (155-907) by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed...Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)Has a knurled clamp$122.44In Stock - Ships within 24 hrs
- Mitutoyo® - 155 Series™ 5-piece SAE Telescoping Gauge Set (155-904)155 Series™ 5-piece SAE Telescoping Gauge Set (155-904) by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed...Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)Has a knurled clamp$175.35In Stock - Ships within 24 hrs
- Mitutoyo® - 155 Series™ 6-piece SAE Telescoping Gauge Set (155-903)155 Series™ 6-piece SAE Telescoping Gauge Set (155-903) by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to your alley. It is designed...Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)Has a knurled clamp$199.34In Stock - Ships within 24 hrs
- Mitutoyo® - 177 Series™ 0.35" Steel Digital Absolute Snap Bore Gauge Setting Ring (177-179)177 Series™ 0.35" Steel Digital Absolute Snap Bore Gauge Setting Ring (177-179) by Mitutoyo®. If you’re looking for a reliable solution to get your job done with the ultimate accuracy, this top-notch measuring tool is right up to...Used for quick and accurate setting of dial bore gages, Holtest and inside micrometersIf a setting ring of an optimal size is prepared, it can be used for calibration$136.51In Stock - Ships within 24 hrs
Bore gauges are widely used in workshops, service stations, and other places where finding out exact inner diameters is crucial. For instance, it can be the diameter of a cylinder in an engine being repaired. Over time, a cylinder loses its cylindrical shape, and in order to evaluate the actual wear, a mechanic has to measure the diameters in several points throughout the cylinder's height. You won't do it using a caliper; the most suitable instrument is a bore gauge, as it can protrude into the cylinder bore. Many bore gauges are offered in kits that include a head and interchangeable anvils allowing you to make measurements at different depths.
A resolution scale may be analog or digital, while the size of anvils is important to select the needed measuring range. For deeper holes, a kit may include extension rods, while ball contact points are often made of carbide steel for durability. In our online store, you will find a wide range of bore gauges and internal micrometer holtest kits sourced from such renowned brands as Mitutoyo, Fowler High Precision, and others. These are high quality precision tools enabling you to complete the job in the best way possible.
