In.-Oz. Gauges | McMaster-Carr

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Unit of Measure

Maximum Torque

250 in·lbf to 499 in·lbf

500 in·lbf to 999 in·lbf

1,000 in·lbf to 1,999 in·lbf

2,000 in·lbf or greater

Less than 1,000 N-cm

1,000 N-cm to 9,999 N-cm

10,000 N-cm to 19,999 N-cm

20,000 N-cm to 39,999 N-cm

40,000 N-cm or greater

Torque

Less than 50 in·lbf

50 in·lbf to 99 in·lbf

100 in·lbf to 249 in·lbf

250 in·lbf to 499 in·lbf

500 in·lbf or greater

Less than 500 N-cm

500 N-cm to 999 N-cm

1,000 N-cm to 1,999 N-cm

2,000 N-cm to 3,999 N-cm

4,000 N-cm or greater

Display Type

Square Drive Size

Certificate Type

Calibration Certificate Traceable to NIST

Calibration Certificate with Test Data Traceable to JIS

Component

Gauge

Hand-Turned Sensor

Wrench-Attachable Sensor

Graduations

DFARS Specialty Metals

Exempt

Torque-Measuring Direction

Clockwise and Counterclockwise

Clockwise Accuracy

Export Control Classification Number (ECCN)

REACH

RoHS

System of Measurement

Inch

Counterclockwise Accuracy

Container Type

Data Connection

Power Source

Data Log Capacity

Overall Length

Operating Mode

Material

Dial OD

Cord Length

Sold As

45 Products

About Torque Tools

Finger-tighten the three-jaw chuck onto a torque wrench or screwdriver, then twist either the gauge or tool to check the tool’s accuracy. A pointer on the dial shows torque as it’s measured—no batteries required. Bring these pocket-sized testers anywhere your tools are.

All testers come with a calibration certificate with test data traceable to either NIST or JIS, so they meet standards for accuracy. For the most accurate performance, the maximum torque you're applying should fall near the middle of the tester's torque range. Use with hand tools only.

Testers with memory pointer show the maximum torque reached.

				Accuracy
Torque Range	Graduations	Chuck Capacity	Torque-Measuring Direction	Clockwise	Counterclockwise	Dial OD	Features	Material	Chuck Material	Container Type		Each
With Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration
in.-oz.
0.06 to 0.6 in.-oz.	0.01 in.-oz.	1/4"	Clockwise and Counterclockwise	±2%	±2%	1 3/4"	__	Aluminum	Aluminum	Plastic Case	000000000	0000000
2 to 18 in.-oz.	0.5 in.-oz.	1/4"	Clockwise and Counterclockwise	±2%	±2%	1 3/4"	Memory Pointer	Aluminum	Aluminum	Plastic Case	000000000	000000
4 to 36 in.-oz.	0.5 in.-oz.	1/4"	Clockwise and Counterclockwise	±2%	±2%	1 3/4"	Memory Pointer	Aluminum	Aluminum	Plastic Case	000000000	000000
10 to 120 in.-oz.	2 in.-oz.	11/32"	Clockwise and Counterclockwise	±2%	±2%	2 3/4"	Memory Pointer	Aluminum	Steel	Plastic Case	000000000	00000000
With Calibration Certificate with Test Data Traceable to JIS
in.-oz.
0.06 to 0.6 in.-oz.	0.01 in.-oz.	1/4"	Clockwise and Counterclockwise	±2%	±2%	1 3/4"	__	Aluminum	Aluminum	Plastic Case	00000000	000000
2 to 18 in.-oz.	0.5 in.-oz.	1/4"	Clockwise and Counterclockwise	±2%	±2%	1 3/4"	Memory Pointer	Aluminum	Aluminum	Plastic Case	00000000	000000
4 to 36 in.-oz.	0.5 in.-oz.	1/4"	Clockwise and Counterclockwise	±2%	±2%	1 3/4"	Memory Pointer	Aluminum	Aluminum	Plastic Case	00000000	000000
10 to 120 in.-oz.	2 in.-oz.	11/32"	Clockwise and Counterclockwise	±2%	±2%	2 1/2"	Memory Pointer	Aluminum	Steel	Plastic Case	00000000	000000

Chuck-Style Digital Torque Tool Testers


Tester Shown with Stand and Fixture (Sold Separately)	Tester	Testing Fixture
Tester Shown with Stand and Fixture (Sold Separately)	Testing Stand

Measure the torque output of torque wrenches, screwdrivers, and other hand tools to ensure they deliver the right amount of torque—and check your results on a digital screen. Cycle through four units of measure on the screen, then set it to display real-time or maximum torque. These testers have a keyless chuck that's similar to a standard drill chuck: insert the tool you're measuring and tighten the chuck by hand. They can also be used to measure the torque consistency of small rotating parts, such as motors, potentiometers, and encoders.

Note: For the most accurate performance, the maximum torque you apply should fall near the middle of the tester’s torque range.

Testers with calibration certificate with test data traceable to NIST include the test measurements that confirm accuracy.

The tester's memory keeps track of up to 999 different measurements. Use the USB cable and software download link (sold separately) to transmit, store, and analyze test data on a computer. The software stores time, date, and torque measurement values that you can import into Microsoft Excel.

To use the tester on external power, add an AC adapter (sold separately) and attach it with the USB cable (sold separately with the software).

For large and oddly shaped items, use a testing fixture (sold separately). Testing fixtures fit inside the tester's chuck and have four clamping pins that allow you to hold objects as wide as 2 1/4".

For handheld use, the display fits inside the back of the tester. To use the tester on a flat surface, remove the display from the back of the tester. For additional stability, mount the tester onto a testing stand (sold separately). Testing stands have four pins that fit inside the tester to anchor it, a handle for leverage, and mounting holes for permanently securing the stand.

				Accuracy
Torque Range	Graduations	Chuck Capacity	Torque-Measuring Direction	Clockwise	Counterclockwise	Material	Chuck Body Material	Chuck Jaw Material	Container Type	Batteries Included	Operating Modes		Each
Testers
in.-oz., cNm, mNm, cm-g
0.15 to 0.7 in.-oz. 0.1 to 0.5 cNm 1 to 5 mNm 10 to 50 cm-g	0.001 cNm 0.001 in.-oz. 0.01 mNm 0.1 cm-g	1/4"	Clockwise and Counterclockwise	±2%	±2%	Plastic	Aluminum	Steel	Plastic Case	Yes	Peak, Track	0000000	000000000
0.6 to 2.8 in.-oz. 0.4 to 2.0 cNm 4 to 20 mNm 40 to 200 cm-g	0.002 cNm 0.002 in.-oz. 0.02 mNm 0.2 cm-g	1/4"	Clockwise and Counterclockwise	±2%	±2%	Plastic	Aluminum	Steel	Plastic Case	Yes	Peak, Track	0000000	00000000
3 to 14 in.-oz. 2 to 10 cNm 20 to 100 mNm 200 to 1,000 cm-g	0.01 cNm 0.01 in.-oz. 0.1 mNm 1 cm-g	1/4"	Clockwise and Counterclockwise	±2%	±2%	Plastic	Aluminum	Steel	Plastic Case	Yes	Peak, Track	0000000	00000000
Testers with Calibration Certificate with Test Data Traceable to NIST
in.-oz., cNm, mNm, cm-g
0.15 to 0.7 in.-oz. 0.1 to 0.5 cNm 1 to 5 mNm 10 to 50 cm-g	0.001 cNm 0.001 in.-oz. 0.01 mNm 0.1 cm-g	1/4"	Clockwise and Counterclockwise	±2%	±2%	Plastic	Aluminum	Steel	Plastic Case	Yes	Peak, Track	0000000	00000000
0.6 to 2.8 in.-oz. 0.4 to 2.0 cNm 4 to 20 mNm 40 to 200 cm-g	0.002 cNm 0.002 in.-oz. 0.02 mNm 0.2 cm-g	1/4"	Clockwise and Counterclockwise	±2%	±2%	Plastic	Aluminum	Steel	Plastic Case	Yes	Peak, Track	0000000	00000000
3 to 14 in.-oz. 2 to 10 cNm 20 to 100 mNm 200 to 1,000 cm-g	0.01 cNm 0.01 in.-oz. 0.1 mNm 1 cm-g	1/4"	Clockwise and Counterclockwise	±2%	±2%	Plastic	Aluminum	Steel	Plastic Case	Yes	Peak, Track	0000000	00000000

AC Adapter	Each	000000
USB Cable and Software Download Link	Each	00000
Testing Fixture	Each	000000
Testing Stand	Each	000000

High-Accuracy Torque Tool Testers

Accurate to within ±1%, these torque testers are often used to check the accuracy of torque wrenches and screwdrivers on assembly lines. They come with a calibration certificate traceable to NIST that states they’ve passed a test for accuracy. To test, place your torque wrench or screwdriver onto the tester with the included square drive connection and turn. These testers display torque as it's measured and the maximum torque reached. For accuracy when testing click-style wrenches, they also show the first torque peak reached. They’re not for use with impact or pulse tools.

Note: For the most accurate readings, the maximum torque you're applying should fall near the middle of the tester's torque range.

Bench-top testers can be mounted to your work surface. Those with a gooseneck display can be bent until you can clearly see the test results. Mount these testers to your workbench with a mounting bracket (sold separately). Or, carry them where they’re needed using the included case.

Bench Top with Gooseneck Digital-Screen Display

				Accuracy							Mounting Holes
Square Drive Size	Torque Range	Graduations	Torque-Measuring Direction	Clockwise	Counterclockwise	For Tool Type	Ht.	Wd.	Dp.	Mounting Fasteners Included	No. of	Dia.	Includes		Each
With Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration
in.-oz., cNm
1/4"	10 to 100 in.-oz. 7 to 70.6 cNm	1 in.-oz. 0.1 cNm	Clockwise and Counterclockwise	±0.5%	±0.5%	Hand Tools Only	2 1/2"	4 1/2"	14 1/2"	No	6	5/16"	Carrying Case, Female Drive Adapter	0000000	000000000
1/4"	40 to 400 in.-oz. 28 to 280 cNm	1 in.-oz. 1 cNm	Clockwise and Counterclockwise	±0.5%	±0.5%	Hand Tools Only	2 1/2"	4 1/2"	14 1/2"	No	6	5/16"	Carrying Case, Female Drive Adapter	0000000	00000000

Mounting Brackets for Bench-Top Testers with Gooseneck Digital-Screen Display

					Mounting Holes
Material	Wd.	Ht.	Dp.	Mounting Fasteners Included	No. Of	Dia.		Each
Steel	4 1/2"	2 1/2"	8 3/4"	No	6	5/16"	0000000	0000000

Rotary Torque Testers

Monitor torque as you apply it—these testers mount between your torque tool and your fastener. Engage the fastener to track both torque and the angle of rotation for each crank of your tool (snug torque) before you've reached the final torque. This gives you a better idea if fasteners are consistently tightened than measuring torque alone. These testers are often used with nutrunners and click-style torque wrenches in the automotive and aerospace industries. Store up to 999 maximum torque (peak) and rotation values, including the date and time of each test, or transfer to your computer to view in an Excel file. CE marked, they meet European safety standards.

For the most accurate readings, the maximum torque you're applying should fall near the middle of the tester's torque range. They are not for use with impact tools.

Testers with a USB connection transfer data directly to your computer with the included cord. These testers last up to 10 hours on a single charge.

Testers with a Bluetooth connection wirelessly transmit data to a computer as you measure. You can also remotely set snug torque, or when these testers starting measuring the torque applied with each rotation. They last up to 8 hours on a single charge with Bluetooth on and 10 hours with it off.

			Accuracy
Square Drive Size	Torque Range	Graduations	Clockwise	Counterclockwise	Lg.	OD	Features	Battery Type	Battery Charger Included	Includes		Each
USB-B Data Connection
1/4"	280 to 1,400 in.-oz. 17.6 to 88 in.-lbs. 1.5 to 7.3 ft.-lbs. 20 to 100 kgf-cm 0.2 to 1 kgf-m 200 to 1,000 cNm 2 to 10 Nm	1 in.-oz. 0.1 in.-lbs. 0.01 ft.-lbs. 0.1 kgf-cm 0.001 kgf-m 1 cNm 0.01 Nm	±1%	±1%	2 15/16"	1 13/16"	Plug Cover, Torque Measurement Memory	Rechargeable	Yes	6 1/2-ft. Long USB Cord, AC Adapter	0000000	000000000
3/8"	560 to 2,800 in.-oz. 35 to 175 in.-lbs. 3 to 14.5 ft.-lbs. 40 to 200 kgf-cm 0.4 to 2 kgf-m 400 to 2,000 cNm 4 to 20 Nm	2 in.-oz. 0.2 in.-lbs. 0.02 ft.-lbs. 0.2 kgf-cm 0.002 kgf-m 2 cNm 0.02 Nm	±1%	±1%	2 15/16"	1 13/16"	Plug Cover, Torque Measurement Memory	Rechargeable	Yes	6 1/2-ft. Long USB Cord, AC Adapter	0000000	00000000
3/8"	1,400 to 7,000 in.-oz. 88 to 440 in.-lbs. 7.5 to 36.5 ft.-lbs. 100 to 500 kgf-cm 1 to 5 kgf-m 1,000 to 5,000 cNm 10 to 50 Nm	5 in.-oz. 0.5 in.-lbs. 0.05 ft.-lbs. 0.5 kgf-cm 0.005 kgf-m 5 cNm 0.05 Nm	±1%	±1%	2 15/16"	1 13/16"	Plug Cover, Torque Measurement Memory	Rechargeable	Yes	6 1/2-ft. Long USB Cord, AC Adapter	0000000	00000000
1/2"	176 to 880 in.-lbs. 15 to 73 ft.-lbs. 200 to 1,000 kgf-cm 2 to 10 kgf-m 20 to 100 Nm	1 in.-lbs. 0.1 ft.-lbs. 1 kgf-cm 0.01 kgf-m 0.1 Nm	±1%	±1%	2 15/16"	1 13/16"	Plug Cover, Torque Measurement Memory	Rechargeable	Yes	6 1/2-ft. Long USB Cord, AC Adapter	0000000	00000000
1/2"	350 to 1,750 in.-lbs. 30 to 145 ft.-lbs. 400 to 2,000 kgf-cm 4 to 20 kgf-m 40 to 200 Nm	2 in.-lbs. 0.2 ft.-lbs. 2 kgf-cm 0.02 kgf-m 0.2 Nm	±1%	±1%	2 15/16"	1 13/16"	Plug Cover, Torque Measurement Memory	Rechargeable	Yes	6 1/2-ft. Long USB Cord, AC Adapter	0000000	00000000
Bluetooth Data Connection
1/4"	280 to 1,400 in.-oz. 17.6 to 88 in.-lbs. 1.5 to 7.3 ft.-lbs. 20 to 100 kgf-cm 0.2 to 1 kgf-m 200 to 1,000 cNm 2 to 10 Nm	1 in.-oz. 0.1 in.-lbs. 0.01 ft.-lbs. 0.1 kgf-cm 0.001 kgf-m 1 cNm 0.01 Nm	±1%	±1%	2 15/16"	1 15/16"	Plug Cover, Torque Measurement Memory	Rechargeable	Yes	AC Adapter	0000000	00000000
3/8"	560 to 2,800 in.-oz. 35 to 175 in.-lbs. 3 to 14.5 ft.-lbs. 40 to 200 kgf-cm 0.4 to 2 kgf-m 400 to 2,000 cNm 4 to 20 Nm	2 in.-oz. 0.2 in.-lbs. 0.02 ft.-lbs. 0.2 kgf-cm 0.002 kgf-m 2 cNm 0.02 Nm	±1%	±1%	2 15/16"	1 15/16"	Plug Cover, Torque Measurement Memory	Rechargeable	Yes	AC Adapter	0000000	00000000
3/8"	1,400 to 7,000 in.-oz. 88 to 440 in.-lbs. 7.5 to 36.5 ft.-lbs. 100 to 500 kgf-cm 1 to 5 kgf-m 1,000 to 5,000 cNm 10 to 50 Nm	5 in.-oz. 0.5 in.-lbs. 0.05 ft.-lbs. 0.5 kgf-cm 0.005 kgf-m 5 cNm 0.05 Nm	±1%	±1%	2 15/16"	1 15/16"	Plug Cover, Torque Measurement Memory	Rechargeable	Yes	AC Adapter	0000000	00000000
1/2"	176 to 880 in.-lbs. 15 to 73 ft.-lbs. 200 to 1,000 kgf-cm 2 to 10 kgf-m 20 to 100 Nm	1 in.-lbs. 0.1 ft.-lbs. 1 kgf-cm 0.01 kgf-m 0.1 Nm	±1%	±1%	2 15/16"	1 15/16"	Plug Cover, Torque Measurement Memory	Rechargeable	Yes	AC Adapter	0000000	00000000
1/2"	350 to 1,750 in.-lbs. 30 to 145 ft.-lbs. 400 to 2,000 kgf-cm 4 to 20 kgf-m 40 to 200 Nm	2 in.-lbs. 0.2 ft.-lbs. 2 kgf-cm 0.02 kgf-m 0.2 Nm	±1%	±1%	2 15/16"	1 15/16"	Plug Cover, Torque Measurement Memory	Rechargeable	Yes	AC Adapter	0000000	00000000

Data-Recording Torque Gauges

Use these gauges with changeable sensors and square-drive sockets (sold separately) to display, collect, and download torque readings. They display torque as it's measured and the maximum torque reached. Gauges can also be used to convert any hand-turned square drive tool into a precise torque-measuring tool. For the most accurate performance, the maximum torque you're applying should fall near the middle of the gauge's torque range.

Wrench-attachable sensors fit between your wrench and socket. Use with hand tools only.

Hand-turned sensors don't require a tool; place into your socket and turn them with your hand.

Gauges

in.-oz., in.-lbs., ft.-lbs., Nm, cNm, m-kg, cm.-kg
Features	Lg.	Wd.	Ht.	Data Log Cap.	Batteries Included	Includes	Container Type		Each
Torque Measurement Memory, Programmable Torque Settings, Maximum Torque Display, Keypad, Headphone Jack, Audible Alarm	6"	3"	2 1/2"	3,500	Yes	3-ft Long USB Cable	Plastic Case	0000000	000000000

Wrench-Attachable Sensors with Calibration Certificate with Test Data Traceable to NIST

			Accuracy
Square Drive Size (Gender)	Torque Range	Torque-Measuring Direction	Clockwise	Counterclockwise	Cord Lg., ft.		Each
in.-oz., in.-lbs., ft.-lbs., Nm, cNm, m-kg, cm-kg
1/4" (Female) × 1/4" (Male)	80 to 800 in.-oz. 5 to 50 in.-lbs. 0.417 to 4.17 ft.-lbs. 0.565 to 5.65 Nm 56.5 to 565 cNm 0.058 to 0.576 m-kg 5.76 to 57.6 cm-kg	Clockwise and Counterclockwise	±1%	±1%	4	0000000	0000000
1/4" (Female) × 1/4" (Male)	320 to 3,200 in.-oz. 20 to 200 in.-lbs. 1.67 to 16.7 ft.-lbs. 2.26 to 22.6 Nm 226 to 2,260 cNm 0.23 to 2.3 m-kg 23 to 230 cm-kg	Clockwise and Counterclockwise	±1%	±1%	4	0000000	000000
3/8" (Female) × 3/8" (Male)	120 to 1,200 in.-lbs. 10 to 100 ft.-lbs. 13.6 to 136 Nm 1,356 to 13,560 cNm 1.38 to 13.8 m-kg 138 to 1,383 cm-kg	Clockwise and Counterclockwise	±1%	±1%	4	0000000	000000
1/2" (Female) × 1/2" (Male)	300 to 3,000 in.-lbs. 25 to 250 ft.-lbs. 33.9 to 339 Nm 3,390 to 33,900 cNm 3.46 to 34.6 m-kg 346 to 3,456 cm-kg	Clockwise and Counterclockwise	±1%	±1%	4	0000000	000000
3/4" (Female) × 3/4" (Male)	720 to 7,200 in.-lbs. 60 to 600 ft.-lbs. 81.3 to 813 Nm 8,135 to 81,350 cNm 8.3 to 83 m-kg 830 to 8,295 cm-kg	Clockwise and Counterclockwise	±1%	±1%	8	0000000	000000

Hand-Turned Sensors with Calibration Certificate with Test Data Traceable to NIST

			Accuracy
Square Drive Size (Gender)	Torque Range	Torque-Measuring Direction	Clockwise	Counterclockwise	Cord Lg., ft.		Each
in.-oz., in.-lbs., ft.-lbs., Nm, cNm, m-kg, cm-kg
1/4" (Male)	2 to 20 in.-oz. 0.125 to 1.25 in.-lbs. 0.01 to 0.104 ft.-lbs. 0.014 to 0.141 Nm 1.41 to 14.1 cNm 0.001 to 0.014 m-kg 0.144 to 1.44 cm-kg	Clockwise and Counterclockwise	±2%	±2%	4	0000000	0000000
1/4" (Male)	16 to 160 in.-oz. 1 to 10 in.-lbs. 0.083 to 0.833 ft.-lbs. 0.113 to 1.13 Nm 11.3 to 113 cNm 0.012 to 0.115 m-kg 1.15 to 11.5 cm-kg	Clockwise and Counterclockwise	±2%	±2%	4	0000000	000000

Torque-Measuring Screwdrivers

With 3% Accuracy

A dial shows how torque measurements change as you turn the driver. Use these tools to fasten to a specific torque, determine fastener torque specifications, and identify the torque required to loosen tightened fasteners.

Calibration certificate traceable to NIST states the product has passed a test for accuracy.

			Accuracy				Material
Torque Range	Graduations	For Bit Hex Shank Size	Clockwise	Counterclockwise	Certification	O'all Lg.	Shaft	Handle	Includes		Each
in.-oz.
0-12 in.-oz.	0.5 in.-oz	1/4"	±3%	±3%	Calibration Certificate Traceable to NIST	8"	Steel	Plastic	No. 2 Phillips Screwdriver Bit 1/4" Slotted Screwdriver Bit 1/4" Square Drive Socket Adapter	0000000	0000000
0-24 in.-oz	1 in.-oz.	1/4"	±3%	±3%	Calibration Certificate Traceable to NIST	8"	Steel	Plastic	No. 2 Phillips Screwdriver Bit 1/4" Slotted Screwdriver Bit 1/4" Square Drive Socket Adapter	0000000	000000
0-3 in.-oz.	0.25 in.-oz	1/4"	±3%	±3%	Calibration Certificate Traceable to NIST	8"	Steel	Plastic	No. 2 Phillips Screwdriver Bit 1/4" Slotted Screwdriver Bit 1/4" Square Drive Socket Adapter	0000000	000000
0-48 in.-oz.	2 in.-oz.	1/4"	±3%	±3%	Calibration Certificate Traceable to NIST	8"	Steel	Plastic	No. 2 Phillips Screwdriver Bit 1/4" Slotted Screwdriver Bit 1/4" Square Drive Socket Adapter	0000000	000000
0-6 in.-oz.	0.5 in.-oz	1/4"	±3%	±3%	Calibration Certificate Traceable to NIST	8"	Steel	Plastic	No. 2 Phillips Screwdriver Bit 1/4" Slotted Screwdriver Bit 1/4" Square Drive Socket Adapter	0000000	000000
0-96 in.-oz.	4 in.-oz.	1/4"	±3%	±3%	Calibration Certificate Traceable to NIST	8"	Steel	Plastic	No. 2 Phillips Screwdriver Bit 1/4" Slotted Screwdriver Bit 1/4" Square Drive Socket Adapter	0000000	000000