Best Metric Hole Gauges in 2026

AcuRite rain gauge measures up to 5 inches of rainwater

Numbers are magnified by over 35% for simple, at-a-glance rainfall measurement viewing

Easy-to-read white numbers and inch markings

Quickly and easily size bolts, screws, nuts and twist drills

Features ruler marked with inches and millimeters

Gauge metric hex nuts and washers by holding under metric holes

[Size]:0.061-0.250", minus tolerance: 0.0002", Length: 2"±0.01", Step: 0.001", HRC: 60-62,

[Features]: Each gage hole is clearly marked; pin gage is heat treated and size info is etched on each pin gage with no sharp corners;

[Product includes]: Storage case; 190pcs pin gages

【Range & Precision】Measuring range is 0-225° (vertical and horizontal) at a measuring precision of 0.5°. （NOTE: It is not a digital level）

【Easy Reading】Easily readable LCD display shows the exact measuring results at once with data holding function.

【Convenient Design】HOLD button to lock angle; Hole to hang the digital angle level.

Blue LED digital voltmeter display with helpful color-coded voltage level scale

Universal compatibility with 12vDC power sources

Ideal for car, boat, ATV, UTV, camper, motorbike and other custom vehicles

【Multifunction Pro Anemometer】Wind Speed, Wind Temperature, Wind Chill, Low battery indicator on bright backlit LCD screen. BT-100 is a portable wind speed guages can accurately measure air speed in 5 units: m/s, km/h, ft/min, knots, mph. Wind Temp in ℃/℉(Degree Celsius/Fahrenheit)

【Accurate Wind Meter】Wind Speed Meter for measuring wind speed range 0.67~67.1 mph(+/- 5% of readings), Wind temperature -10~45℃,14℉-113℉(+/-2℃,35.6℉); Resolution 0.1m/s; 0.2℃. 2 temp sensors and 8 vanes makes the meter is very sensitive to measure very low air flows to help you with HVAC installation, CFM calculation, Duct vents.

【Tripod Hole for Mounting】There’s a metal threaded hole on the bottom of the digital anemometer, so you can fix it on a tripod for continuous wind guages. To set your hands free when you fly drones, rc planes, wings, helicopters and quads, long distance shooting.

🎣【STEADY WIND SPEED MEASUREMENT & HIGH ACCURACY】Wind Speed Range: 0.3-30m/s(MAX up to 69mph) and Accuracy of Wind Speed: ±5% dgts

⛳【ESSENTIALS FOR BAD WEATHER】You will know the hurricane trend before going out. HOLDPEAK anemometer provides fast measurement for analysis of critical environment conditions.

🎣【MULTIFUNCTIONAL ANEMOMETER YOU WILL NEED】Wind Speed, temperature and wind chill in one LCD display. Digital Anemometer Handheld measure wind speed in 5 units: m/s, km/h, ft/min, knots, mph.

[Size]:0.251-0.500", minus tolerance: 0.0002", Length: 2"±0.01", Step: 0.001", HRC: 60-62

[Features]: Each gage hole is clearly marked; pin gage is heat treated and size info is etched on each pin gage with no sharp corners

[Product includes]: Storage case; 250pcs pin gages

Measure voltage: 6-30V,The meter has easy to read LED segments and connect to your 12 volt system.， great mini voltmeter to monitor your vehicle battery status，with reverse connection protection function, line will not be burnt.

Mounts in a 11.42" hole in panels up , a nylon retaining nut holds the meter in place.

Made of protection against fire retardant materials,Easy to use and install.

Sturdy Steel Construction - Made of 65 manganese steel by heat treatment, high strength, corrosion resistance and no rust, long life.

Gages Range - 4 sizes of gages are supplied in a fitted case. Incl. 1/8"-1/5",1/5"-3/10",3/10"-2/5",2/5"-1/2"

Adjustment - Smooth, sensitive adjustment for better feel, giving more accurate measurements

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

Super Precision Deep Measuring Bore Gauge

Accuracy: 0.0005" with Crisp Precision Graduations

29 Holes measurement: 29-hole sizes remain constant, providing precision accuracy; The drill sizes in both inches and decimal equivalents, equivalents range from 1/16 inch to 1/2 inch by 1/64 inch, come with clearly marked fractions and decimal for accurate measurement

Exquisite design: heavy gauge steel construction is machined and ground to close tolerances, it can quickly and conveniently identify drill bit diameter; With a hanging hole design for easy hanging, which provides convenience for your work

Durable material: well constructed of stainless steel, it is sturdy and durable, helps to gauge the drill bits quickly and easily when working with older, unmarked drill bits and bits that are too small to fit diameter markings, practical equipment in home tools box

[High Precision and Long Life]: The exterior is made of stainless steel, and the interior is controlled by high-quality reed switches. The sensor is corrosion-resistant, does not rust, has a long life, stable output signal, and accurate measurement. Suitable for gasoline, diesel, water, methanol, etc.

[Easy to Read]: The fuel level gauge has 8 adjustable backlight colors, IP67 waterproof, stainless steel frame, anti-fog curved glass, easy to read (Empty-1/2-Full).

[Easy Installation]: SAE 5 hole mounting pattern, NBR material gasket, good sealing performance, high oil resistance, with M5 5 screws, 10 quick wiring terminals, easy and quick installation by referring to the wiring diagram.

Replaces: 03601AB1, 515521M91, 515521M91GV, 536229R1, 536229R1GV, 536229R91, 360053R91, 378424R91, 393334R91, 70254407GV, 03601AB1GV, A0NN10670AGV, JTA30GV, 1073455M91, 2393020, 240987, 266004, 70254407, AONN10670A, FAD10850A, JDA30, JTA30

30-0-30 Amperes, Non-Luminous, For 2" Diameter Hole

Fits: Allis Chalmers Tractor 170, 190, B, C, D10, D12, D14, D15, D17, D19, D21, WC, WD45, WF; Case Tractor S, SC, SO, VA; Ford Tractors: 2N, 600, 700, 800, 8N, 900, 9N, NAA/Jubilee; International Harvester Industrial Tractor 2400A, 2500A; International Harvester Tractor 454, 464, 574, 674, Cub, Cub 184; Massey Ferguson Tractor MF165, MF35, MF50, MF65, MF85, MF88, Super 90, TO35

Through-hole design: Easy Wiring; Measure positive or negative current; No current direction limitation

Electrically isolated from high voltage power source which eliminates risk to delicate monitoring equipment and also minimizes safety concerns

Display Voltage or (+ -)Current; Voltage Range: 5V-120V; Current range: 0-100A

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

"Detailed parameter: input voltage of the car voltmeter is 12V to 24V, with a measuring range of DC from 5V to 32V, and its accuracy is 0.1V"

"Twist-and-lock system display: featuring a 3 bits LED digital display, the waterproof voltmeter gauge is easy to read, displaying the real time of monitoring of battery voltage, making it portable for you know the status of the battery, helping you timely grasp the state of battery voltage between full charged and discharged of this DC voltmeter"

"Wide applications: the waterproof voltage gauge meter with terminals is suitable for most kind of vehicles, such as motorbike car, boat, ATV, UTV, RV, caravans, SUV, off-road, travel trailer, marine, ship, truck, etc."

Mechanical Round Hour Meter Work Range:AC/DC 6 to 80V

Accumulating Total Running Hours TOT. Max Hours:99999.9H,Resolution 0.1 hour.

The hour meter fits in to a 2" round hole and includes an adjustable retrainer clip so that the meter can be mounted on material up to 9/32 inch thick. Meter depth behind the panel is 1.5 inches

【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

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

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

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

It works for 12v-24v, mini size and easy to install, work great for checking voltage, not recommend to use the voltmeter in a 24V car like truck/ lawnmower

Twist-and-lock system Display: 3-bits, LED digital tube, Lamp display is Blue

Universal for: motorbike car/ boat/ ATV/ UTV/ camper/ caravans/ travel trailer etc.

【Clear Marking】 : There is a small hole at both ends, which is convenient for adjustment and disassembly with screws. You can easily rotate the thread pitch gauge blade where you press the tooth thread gauge. The numbers are clearly marked and easy to read.

【Material】 : Screw gauge tool set is made of stainless steel and processed with chrome finish. Surface polished smooth, applying anti-rust oil to prevent rust.good resilience, elegant appearance.

【Measuring Range】: 51 pcs America SAE type measuring range is 4-84; 52 pcs Metric & America SAE Type & British Whitworth Metric is 0.25-6.0mm, Imperial is 4G-62G US: 8, 10, 11, 14, 19, 28.

★【What You Get】: In this thread pitch gauge kit, it include 51Pcs America SAE type, 52pcs metric and Inch type, 3pcs metric & america SAE type & British Whitworth, they are well packed in a plastic box, easy for carry and store.

★【High Quality】: All the thread pitch gauge are made of stainless steel, heat processed with chrome finish, high strength, good resilience, elegant appearance. Surface polished smooth, applying anti-rust oil to prevent rust.

★【Measuring Range】: 51pcs America SAE type measuring range is 4-84; 58pcs Metric & America SAE Type & British Whitworth Metric is 0.25-6.0mm, Imperial is 4G-62G US: 8, 10, 11, 14, 19, 28.

5/16'' - 6'', 6 Pcs Telescoping Gage Set, #3602-5018

Satin chrome finish Contact points are hardened tool steel and precision ground on the end measuring radius Rigid handle with self-centering system

Smooth and constant spring tension Supplied with fitted vinyl case

[Cut Wood Threads]: Use the Deadwood Crafted Tools Plastic Dowel Jigs Woodworking Thread Tap Die Kit to cut 1/2-inch external and internal threads for fasteners and holes; 8 thread per inch

[Premium Cutting]: Tapping tool set die and thread cutter screw hole ensures smooth, clean cuts for hard wood blocks and soft wood dowels for woodworking projects; 7/16-inch tap hole for 1/2-inch (1.2cm) dowel

[How to Use]: Use oil lubricant (not included) to soften wood and 7/16-inch drill bit; Align dowel to wood threading kit threader hole, press down and turn to create external threads; Included threaded insert drill tap set tool cuts threaded holes in wood blocks to connect threaded large dowels

★【HIGH ACCURACY】Wind Speed Range from 0.3~30m/s,Temperature Range :-10℃~45℃,The Accuracy of Wind Speed is 5% of rdg, Provides fast measurement for analysis of critical environment conditions.

★【MULTIFUNCTIONAL ANEMOMETER THAT YOU WILL NEED】Wind Speed,Temperature and Wind Chill in one LCD Display. Measure wind speed in 5 units: m/s, km/h, ft/min, knots, mph.

★【TRIPOD HOLE】There is a tripod hole at the bottom of the anemometer,you can fix the anemometer to the tripod when you measure the wind speed,Keep your hands free. A small tripod is included in the package.

【Toiclebor】 Rain gauge measures up to 7 inches of rainwater.

【Easy to Install】Inserted on the ground or Hung onto wall with nails（The ring on the top side of the holder is the hole for installing the nail）.

【Easy-to-read】Big numbers and inch markings.

【Complete Kit for Car Testing】: the 9pcs cylinder testing kit comes with 8 x compression tool and 1 x spark plug tester, total package includes 1 x SPARK PLUG TESTER, 1 x 300PSI DUAL UNITS GAUGE, 1 x STRAIGHT RUBBER CONE ADAPTER, 1 x CURVED RUBBER CONE ADAPTER, 4 x BRASS ADAPTERS, and 1 x 14-inch EXTENSION HOSE, complete package allows you to test the car’s condition easily by yourself

【Extra Value with Spark Plug Tester】: the spark tester is a must have diagnostic tool for engine which has a spark plug, you can diagnose ignition or engine outboard motor issues and a fault in the fuel delivery system quickly and easily; If spark is being sent, the tester will mirror the spark and you can see it light up, therefor you can find dirty spark plugs, defective points, bad cables or connections, etc.

【300psi Dual Units Gauge with 3” Dial】: easy to read this compression gauge which comes with 0 - 300 PSI and 0 - 20 kg/ cm square dual units, the gauge cover is protected by an anti-scratch coating and rubber protection to absorb shocks; Plus, all the items are contained in an ABS case for easy storage, the fittings can accommodate most or all of your needs for most engines, good kit overall for your garage

【Multifunctional Anemometer】Accurately measures wind speed range:1~65 Mph with +/- 5% accuracy in 5 air speed units: m/s, km/h, ft/min, knots, Mph. Tests wind temperature in ℃/°F (Celsius/Fahrenheit). This wind velometer suits for home, field, HVAC installation, CFM calculation and duct vents maintenance.

【Wide Applications】Installed with loads of functions: wind chill indication, MAX/MIN/AVG measurement, switchable units, this air velocity indicator, measuring wind velocity and temperature accurately, works well in weather prediction, outdoor activities, drone flying, boat sailing, fishing, shooting.

【Low Friction Impeller】 Thanks to 8 sensitive lightweight blades, rotating smoothly indoor and outdoor, this wind volume reader can keep track of current, average,maximum or minimum breeze down to 0.2 Mph in real time.

Measuring range: DC 8-48V,Accuracy: 0.1V. Widely used under DC 12V 24V with Blue LED Digital Display, Work great to Test Battery Voltage.

The 12 volt meter Is waterproof design. Mounts in a 1 1/8 inch hole in panels up, a nylon retaining nut holds the meter in place.

Digital Voltmeter Display: Precise 3-bit LED digital display, this 12v DC voltmeter real time monitoring of battery voltage, easy for you to know the status of the battery.