Best Inch Bore Gauges in 2026

Range 0.7" to 6" diameter, Measures bore to 10" deep

Super Precision Deep Measuring Bore Gauge

Accuracy: 0.0005" with Crisp Precision Graduations

Super Precision Deep Bore Gauge

Measures bore to 10" deep, Range 2" to 6" diameter

0.0005" precision graduations

Accurate Measurements: This Bore Gage Features A Dial Indicator With A Graduations Of 0.0005" And A Measuring Depth Of 9.5"

Extended Range: This 2-6" Bore Gage, With A Two-Point Contact System, Is Used For Measuring Hole Diameters And To Detect Geometry Abnormalities. The Carbide-Tipped Anvil Contact Points Provide Extended Wear & Improved Abrasion Resistance

Self-Centering: The Easily Adjustable Bore Gage Is Self-Centering For Fast And Accurate Measurements

【Range】5/16" - 6" (8mm to 150mm), Stainless Steel Construction.

【Using】Gage expands in a hole to be measured , locks in place and then removed to determine final hole size using a micrometer or calipers.

【Package】Includes 6 sets, with vinyl case

Includes extension holder and fitted case

Chrome plated handle. Easily adjustable

Insulated grip. Self-centering.

Figures and increments both inch and metric are etched into surface

For measuring of slot width, gap hole and etc.

Gauge is made of stainless steel, durable

【Multifunctiolan Digital Dial Bore Gauge Set】Neoteck digital bore gauge set includes 1*0.5 inch Digital Indicator; 1*a set of measuring accessories; 1*Measuring rod; 12*Different Specifications of Gauge：75mm、70mm、65mm、60mm、55mm、50mm、45mm、40mm、35mm、30mm、25mm、20mm、10mm from bottom to limit metal ring, 1* Storage Case, which if ideal for Deep Engine Cylinder Measurement

【Accurate Digital Indicator】This digital indicator bore gage set features a digital indicator with diameter range: 0 ~ 12.7 MM (0 ~ 0.5 inch); Resolution: 0.01 MM (0.0005 inch). Use After Zero Setting - Before measuring, be sure to adjust the pointer of the dial indicator to the ‘’0’’ setting and select the measuring head of the appropriate size for measurement

【Precision Digital Bore Gauge】Bore Gauge Measuring diameter range:50mm-160mm(2-6 inch ), Measures deep:150mm (5.9 inch ), Accuracy:0.01MM(0.0003 inch). Super Precision Deep Measuring Bore Gauge - Two-point contact is used to detect geometric diameter measurement problems such as ovality and taper.

Range from 2" to 6". Accuracy: 0.001"

With Carbide tip on measuring plunger

Dial indicator includes jewel bearing, including ABS storage box

TOOL LENGTH: Approx. 7.5cm/2.95", 7.8cm/3.07", 8.8cm/3.46", 9.2cm/3.62"

GAUGE RANGE: 1/8"-1/5",1/5"-3/10",3/10"-2/5",2/5"-1/2"

EXTRA LONG FOR GAUGING DEEP AND SHALLOW HOLES,SLOTS AND SIMILAR WORK

Size：Range from 2" to 6"（50mm to 160mm）；bore to 150mm (5.9") deep; Accuracy 0.01MM (0.0003")；12 PCS anvils: 1 x 2",1 x 2.2",1 x 2.4",1 x 2.6",1 x 2.8",1 x 3",1 x 3.2",1 x 3.4",1 x 3.6",1 x 3.8",2 x 4".

Industrial Professional High Precision Gage：Bore measurement up to 10" deep enables users to measure cylinder out-of-roundness without removing the piston, for mechanic use.

Accurate and Effective：With Carbide tip on measuring plunger，Two-point contact is used to detect geometric diameter measurement problems such as ovality and taper.making repairs more efficient and hassle-free.

For Measuring Different Diameters - Range 50MM(1.97") to 160MM(6.23") diameter, Measures bore to 150mm (5.9") deep, Accuracy 0.01MM(0.0003")

Super Precision Deep Measuring Bore Gauge - Two-point contact is used to detect geometric diameter measurement problems such as ovality and taper

Professional Quality - Self-centering measuring extended heads, chrome plated handle and good quality ABS storage case

Accurate Measurements: The bore gage features an electronic indicator with resolution of 0.00005"/.001mm and measuring depth of 9 inches

Durable Construction: This electronic indicator provides both inch and metric readings; two-point contact system is used to detect geometry problems such as ovality and taper; carbide-tipped contact points provide extended wear and improved abrasion resistance

The easily adjustable bore gage is self-centering and includes a 2-inch contact extension holder

Accurate figures and increments are etched into surface, easy to read

Both Metric and Stadard reading | Welding taper gauge: 1-15mm (1/64-5/8 inch)

Polished, bright and clean without burr, rust laser engraved line and will not rub off

Made To Withstand Even The Toughest Jobs

Designed With The User In Mind

Fit To Match The Needs In The Shop, At Home Or In The Field

SPECIFICATION Name:Industrial Tools Dial Bore Gauge Set Material: Metal Measure range:50-160mm Accuracy: 0.01 Weight:1211g

THE BORE GAUGES The bore gauges are used to measure internal sizes of work pieces by comparative method

GOOD GUIDING PROTECTIVE BRIDGE These series bore gauges are equipped with a good guiding protective bridge which can be self-centering exactly and reliably

Application – This kit universal fits for all diesel engines. Range: 1.00 inch. Graduations: .001 inch. Reading: 0-100.

Material – It is made of special high quality steel and aluminum alloy, hard coated crystal dial face for scratch & corrosion resistance, which reduces the weight of the product and has strong corrosion resistance, wear resistance and durability. Minimize measurement errors and make the measurement results more accurate.

Quick measurement steps – Cylinder sleeve height using pointed contact; Counter bore depth using flat end contact; Top dead center; Piston-to-deck height; Valve protrusion; Easy reading around entire bore.

This dial bore gauge set are equipped with a good guiding protective bridge which can be self-centering exactly and reliably

The moveable anvil on one side and an interchangeable on another side , which serves for setting the bore diameters

This dial indicator with magnetic base and point precision inspection set is measuring range is 50-160mm.Easy to measure, and with high accuracy, which is 0.01

Working Principle - Double action handles are rigidly attached to the contact plungers and are automatically self-centering.

Function - Assist in quick checking of holes, slots and recess up to 6 inch deep.

Scope of Application - Telescopic spring piston in the hole (or groove), can conduct inner diameter detection, used with micrometer or caliper, with knurled locking device.

Dial Bore gauges are designed to measure the inside diameter of holes or bores. They can measure the interior diameter of a hole up to 10” from the surface. Bore gauges can also be used to measure threads or spline pitch diameters

This bore gauge has a measuring range between 2 and 6 inches.

Set comes with 11 stainless steel tipped anvils, 3 spacers (0.1, 0.05 and 0.02 inches) and a 2 inch extension.

Accurate Measurements: Used for accurately setting any bore gage up to 6" in diameter to an accuracy of 0.0001"; comes with a base anvil of 2.750" x 0.80" and 2 adjustable anvils of 2.375" x 0.375"

Bore Gage Capacity: This bore gage master has an internal capacity of 6", a depth capacity of 1", and a centralizer capacity width of 2.625"

Fast Adjustments: Features a quick-release holder for fast adjustment; this bore gage setting master can also be used of external setting, depending on the application (external mics, snap gages, caliper gages)

Absolute Encoder Technology digital indicator w/ IP54 protection

Measure in Inch or Metric with Auto Conversion - Range 1.4" - 6" or 36mm - 150mm

Resolution: 0.00005” / 0.001mm Accuracy: 0.0003” / 0.008mm Repeatability: 0.00005” / 0.001mm

Set Of 3 Quality Stainless Steel Bore Gauges

Range Covered In These 3 Gauges Is 2 To 45 Mm ( 1/16 To 13/4)

Etched Imperial Standard Measurements On One Side Metric On Other Side

Size: Range - 5/16-6 inch (8mm to 150mm)

Material: Contact points are hardened tool steel and precision ground in the end measuring radius

Design: Rigid handle and double action design (self-centering) for quick checking of inside measurements

T-hole gauges are made of high quality steel and are robust and durable

Spring with knurled locking knob and knurled fixing area

For obtaining the exact dimensions of holes and slots

1.8 to 4” range, 6” probe depth, 0.00005”/0.001 mm resolution, with + or - 0.00012” accuracy

LCD display for easy measurement reading

Conforms to IP 53 for dust and water protection

Range: 1.200-1.600" 30-40mm. Resolution: 0.00005" / 0.001mm. Accuracy: 0.00020"

Carbide measuring surfaces

Contact points are designed to allow measurments near the bottom of a blind hole