Precision Measuring & Testing

100+ products

Expected delivery: Tue, Nov 17

Precision measuring and testing tools for machine shops, maintenance departments and quality control. This section includes digital, dial and vernier calipers, outside micrometers, dial and test indicators with magnetic bases, thread pitch gauges, feeler gauges, radius gauges, drill gauges, infrared and probe thermometers, and other inspection tools.

What to check before you order

Range and resolution. Pick a range that covers your parts and a resolution finer than your tolerance.
Digital, dial or vernier. Digital reads quickly and switches units. Dial calipers need no battery. Vernier scales are simple and rugged.
Thread and feeler gauges. Thread pitch gauges identify inch and metric threads before you order taps and dies or fasteners. Feeler gauges set clearances and gaps.
Calibration. Tools used for quality checks should be verified on a schedule your quality system sets.
Care. Keep tools clean, closed and in their cases. Avoid dropping them, which can throw off readings.

For electrical meters and testers, see testers and meters. Browse all measuring and inspection tools or check the thread sizes guide.

Common questions

What is the difference between a caliper and a micrometer?

A caliper measures outside, inside, depth and step dimensions over a wide range and commonly reads to 0.001 in. or 0.01 mm. A micrometer measures one type of dimension over a short range per frame, often 1 in. or 25 mm, and gives finer, more repeatable readings for tight tolerances.

How do I zero a digital caliper?

Wipe the jaw faces clean, close the jaws fully without forcing them, and press the zero or origin button. Check that the display still reads zero after opening and closing the jaws a few times, and replace a weak battery if the reading drifts.

Popular precision measuring & testing

Mitutoyo .093-1" V-Anvil Micrometer 3-Flutes SKU 504-114-202 $719.23
Mitutoyo .800" Setting Ring SKU 504-177-287 $369.39
Mitutoyo 0-.500" Micrometer Head SKU 504-148-502 $95.81
Mitutoyo 0-.500" Standard Micrometer Head SKU 504-148-501 $89.89
Mitutoyo 0-1" (15") Point Micrometer SKU 504-112-177 $314.39
Mitutoyo 0-1" (30") Point Micrometer SKU 504-112-225 $236.87
Mitutoyo 0-1" (30DEG) Point Micrometer SKU 504-112-237 $336.70
Mitutoyo 0-1" Digit Outside Micrometer SKU 504-193-211 $425.61
Mitutoyo 0-1" Digital Micrometerhead SKU 504-250-312 $347.85
Mitutoyo 0-1" Disc Micrometer SKU 504-123-125 $357.04
Mitutoyo 0-1" Disc Micrometerw/Digital C SKU 504-223-125 $707.47
Mitutoyo 0-1" Micrometerspherical a SKU 504-115-314 $205.65
Mitutoyo 0-1" Outside Micrometer SKU 504-103-260 $265.95
Mitutoyo 0-1" Outside Micrometerfriction TY SKU 504-103-135 $174.00
Mitutoyo 0-1" Outside Micrometerratchet TYP SKU 504-103-177 $152.89
Mitutoyo 0-1" Outside Micrometerspherical Anvil & Spi SKU 504-115-253 $204.57
Mitutoyo 0-1" Outside Micrometerspherical Anvil Type SKU 504-295-153 $484.97
Mitutoyo 0-1" Outside Micrometerw/Digital Counter SPH SKU 504-295-253 $483.68
Mitutoyo 0-1" Unimike SKU 504-117-107 $488.65
Mitutoyo 0-12" Depth Micrometer SKU 504-129-150 $671.14
Mitutoyo 0-12" Depth Micrometer w/2.5" Base SKU 504-129-149 $642.89
Mitutoyo 0-2" Outside Micrometerinterchange SKU 504-104-165 $285.32
Mitutoyo 0-2"/0-50.8mm Digimatichead w/LCD Displ SKU 504-164-164 $2,360.54
Mitutoyo 0-25mm Digit Outside Micrometer SKU 504-193-111 $420.66
Mitutoyo 0-25mm Outside Micrometer-Shperical Anvil & Spi SKU 504-295-215 $483.68
Mitutoyo 0-25mm Spherical Face Micrometer SKU 504-115-215 $204.57
Mitutoyo 0-3" Digital Outside Micrometer Set w/Standard SKU 504-193-923 $1,470.56
Mitutoyo 0-3" Outside Micrometer SKU 504-103-922 $632.72
Mitutoyo 0-3" Outside Micrometerset SKU 504-103-929 $573.97
Mitutoyo 0-4" Depth Micrometer w/4 Rods SKU 504-129-131 $301.67
Mitutoyo 0-4" Outside Micrometerset SKU 504-103-931 $743.99
Mitutoyo 0-6" Depth Micrometer SKU 504-129-132 $389.80
Mitutoyo 0-6" Depth Micrometer (2.5 Base) w/6 Rods SKU 504-129-128 $364.95
Mitutoyo 0-6" Outside Micrometerinterchange SKU 504-104-137 $568.32
Box Partners 1 9/16 x 4 3/4" 10-20-30-40-50-60% Humidity Indicators 200/Case SKU DES163 $53.12/pack of 200
Mitutoyo 1-2" Inside Micrometer Caliper Type SKU 504-145-194 $384.15
Mitutoyo 1-2" Inside Micrometerinterchange SKU 504-141-102 $285.86
Mitutoyo 1-2" Outside Micrometer SKU 504-103-262 $311.15
Mitutoyo 1.000" Setting Ring SKU 504-177-184 $414.11
Mitutoyo 1.200" Setting Ring SKU 504-177-289 $434.56
Mitutoyo 1.400" Setting Ring SKU 504-177-185 $594.67
Mitutoyo 1.5-12" Inside Micrometer Ext. Rod TY SKU 504-139-201 $421.44
Mitutoyo 1/64-17/64" 17 Leaves Radius Gage SKU 504-186-903 $270.00
Mitutoyo 10-11" Outside Micrometer Ratchet Sto SKU 504-103-187 $429.35
Mitutoyo 11-12" Outside Micrometer Ratchet Sto SKU 504-103-188 $448.56
Mitutoyo 12"-16" Outside Micrometer Interchange SKU 504-104-152 $1,141.16
Mitutoyo 12"/300mm Vernier Caliper SKU 504-530-115 $535.38
Mitutoyo 12-18" Outside Micrometer w/Interchan SKU 504-104-201 $1,559.21