Best Inch Depth Gauges in 2026

Daisy
Last Updated: Jul 17, 2026

At a Glance: Our Top Picks for Inch Depth Gauges

Fowler 52-646-300-0, Cylinder Dial Bore Gage with 6" Measuring Range
#TOP1
Fowler 52-646-300-0, Cylinder Dial Bore Gage With 6"
9.5
PM SCORE
Fowler 52-646-400-0 , Extender Dial Bore Gage Kit with 1.4-6" Measuring Range
#TOP2
Fowler 52-646-400-0 , Extender Dial Bore Gage Kit
9.2
PM SCORE
Fowler 54-225-555-0 Xtra-Value Electronic Depth Gage with 0-16"/406mm Measuring Range
#TOP3
Fowler 54-225-555-0 Xtra-Value Electronic Depth Gage With 0-16"/406Mm
6.6
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Inch Depth Gauges of 2026

Fowler 52-646-300-0, Cylinder Dial Bore Gage With 6" Measuring Range

FOWLER
52-646-300
0.00 X 0.00 X 0.00 Inches
2.35 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

User-Friendly: The Insulated Grip Allows For Easier Measuring And Is Easily Adjustable

Graduation: .0005 inch

Carbide anvils

Insulated grip

Spring loaded centralizing foot

Complete in shop-hardened case

Fowler 52-646-400-0 , Extender Dial Bore Gage Kit With 1.4-6" Measuring Range

FOWLER
52-646-400-0
15.00 X 7.50 X 2.25 Inches
2.30 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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 1.4-6" range bore gage, with a two-point contact system, is used for measuring hole diameters and also to detect geometry abnormalities such as ovality and taper; carbide-tipped anvil contact points provide extended wear and improved abrasion resistance

SELF CENTERING: The easily adjustable bore gauge is self-centering for fast, accurate measurements

EASY AND EFFICIENT: This bore gage comes with an insulated grip and a chrome plated handle for easy use.

SET INCLUDES: Set comes with two self-centering measuring heads, an extension holder, spacers, and a fitted case

Fowler 54-225-555-0 Xtra-Value Electronic Depth Gage With 0-16"/406Mm Measuring Range

FOWLER
54-225-555-0
7.75 X 4.25 X 1.80 Inches
0.04 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

LCD Display: High-quality electronic depth gage features a large LCD screen which displays in inch/metric/fractions; the electronic display can be easily adjusted for zero setting; spring-loaded and hold measurement button for ease of use

Precision Measurements: Features a 0-16"/406mm range, a resolution of 0.0005"/0.01mm (fractions in 1/64" increments), and travel of 0-1"/25mm

Rod Extensions: Five rods with a diameter of 0.176" that can be connected to reach full capacity

Set Includes: A Fowler 54-225-555-0 depth gage, 5 measuring rods, and a hardened plastic case

Fowler 54-646-401-0, X-Tender-E Digital Dial Bore Gage Set With 1.4" - 6"/35Mm-150Mm Measuring Range

FOWLER
54-646-401-0
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

Minimum Hold Feature: This electric gage locks and holds the bore size as the gage is rocked within the part to be measured

Set Includes: A storage case, 2 batteries, 15 measuring anvils, 4 spacers and an instruction manual

Fowler 52-646-100-0, Dial Bore Gage Set With 0.7-1.5" Measuring Range

FOWLER
52-646-100-0
0.04 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Accurate Measurements: This bore gage with chrome-plated handle features a dial indicator with graduation of 0.0005" and a measuring depth of 8"; carbide-tipped anvil contact points provide extended wear and improved abrasion resistance

Extended Range: This 0.7-1.5" range bore gage, with a two-point contact system, is used for measuring hole diameters and for detecting geometry abnormalities such as ovality and taper

Self-Centering: The easily adjustable bore gage is self-centering for fast and accurate measurements; features an insulated grip for extra stability

Set Includes: A dial bore gage with carbide anvils and a fitted case

Fowler 53-646-000-1, Inch Bore Gage Setting Master Kit

FOWLER
536460001
12.00 X 6.00 X 4.00 Inches
10.69 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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)

Set Includes: The 36 piece economy gage block set comes in a high-quality aluminum case with tolerances up to ±.00005" and a certificate of calibration to N.I.S.T.

Fowler 52-646-600-0, Xtra-Range Dial Bore Gage With 4"-12" Measuring Range

FOWLER
52-646-600-0
0.04 pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Total measurement range of 4 to 12"

Measuring depth of 10"

Insulated grip for extra stability

Two-point contact for detection of geometry problems such as ovality and taperCarbide-tipped contact points for extended wear and improved abrasion resistance

Top 10 depth gauges Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Fowler 7

Top 10 depth gauges Brands Pie Chart


We've carried out a comprehensive analysis of 760 reviews on depth gauges, using our selection criteria to identify the best options in the test, measure & inspect. Our findings reveal that most customers typically select depth gauges priced around $192.21, with top brands including ai, igaging, gemred, newkita, anytime tools, molain, preciva, mitutoyo and fowler and godeson

Our team of expert editors reviewed these high-quality items and handpicked the top 7 depth gauges for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the test, measure & inspect category. These include taurish, anytime tools, gemred, smells, molain store, hongsw, amazon.com, smartiredirect and rumexeng and jerayus .

We are dedicated to assisting our users in finding the right gauges Products based on their needs, saving them considerable time when choosing which depth gauges to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.