Square Drive Ratchet Wrenches | McMaster-Carr

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	System of Measurement System of Measurement

	Square Drive Size Square Drive Size

	Ratcheting or Nonratcheting Ratcheting or Nonratcheting

	Overall Length Overall Length

8 3/4"-12 5/8"

12"-17 1/4"

24"-40"

	Head Style Head Style


Standard	Flex

Offset

	Wrench Type Wrench Type

	Finish Finish

	Material Material

Aluminum-Bronze

Beryllium Copper

	Size Size

	Head Shape Head Shape


Oval	Round

	Maximum Torque Maximum Torque

	Power Source Power Source

	Torque Adjustability Torque Adjustability

	Individual/Set Individual/Set

	Socket Type Socket Type


Retaining Ring	Socket

	Torque Setting Torque Setting

2 to 50 in.-lbs.

2 to 80 in.-lbs.

10 to 50 in.-lbs.

2.5 to 8.3 ft.-lbs.

2.5 to 12.5 ft.-lbs.

2.5 ft.-lbs. to 100 in.-
lbs.

36 in.-lbs. to 15 ft.-
lbs.

50 to 250 in.-lbs.

60 in.-lbs. to 25 ft.-
lbs.

150 in.-lbs. to 62.5
ft.-lbs.

30 to 90 ft.-lbs.

30 to 150 ft.-lbs.

30 ft.-lbs. to 1,080
in.-lbs.

30 ft.-lbs. to 1,800
in.-lbs.

600 to 3,000 in.-lbs.

600 in.-lbs. to 250 ft.-
lbs.

0.3 to 5.6 Nm

0.3 to 9 Nm

1.2 to 6 Nm

3.4 to 11.2 Nm

3.4 to 17 Nm

4.1 to 20.3 Nm

5.7 to 28.2 Nm

6.8 to 34 Nm

17 to 84.8 Nm

20.4 to 40.6 Nm

40.7 to 122 Nm

40.7 to 204 Nm

67.8 to 338.9 Nm

0.2 to 4.1 ft.-lbs.

0.2 to 6.6 ft.-lbs.

0.9 to 4.1 ft.-lbs.

4.2 to 20.8 ft.-lbs.

15 to 30 ft.-lbs.

	Minimum Torque Minimum Torque

	Torque-Limiting Mechanism Torque-Limiting Mechanism

	Torque Wrench Type Torque Wrench Type

Torque Limiting

Torque Measuring

	Turn Required to Ratchet Turn Required to Ratchet

	Grip Material Grip Material

	Certification Certification

Calibration Certificate with
Test Data Traceable to NIST

Calibration Certification
Traceable to NIST

Calibration Certificate with
Test Data Traceable to
UKAS

	For Drive Style For Drive Style


External 12- Point	External Hex

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About Torque Tools

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Ratchet Wrenches and Handles

Ratchet Wrenches

A ratchet mechanism allows you to turn fasteners without removing and repositioning the wrench.

Cushion-Grip Ratchet Wrenches

The handle is covered in rubber for a comfortable grip.

Sealed-Head Ratchet Wrenches

A gasket seals in permanent lubrication and keeps out dirt, dust, and moisture.

Adjustable-Length Ratchet Wrenches

The shaft on these wrenches extends and locks.

Quick-Release Ratchet Wrenches

No need to pull the socket off the tool—push a button to release.

Fast-Driving Ratchet Wrenches

Twist the grip to rapidly turn a socket before final tightening or to remove a fastener once loosened. The handle also swings like a traditional ratchet wrench.

Replaceable-Head Ratchet Wrenches

When the ratchet head becomes worn or damaged, change it out for a new one.

Tapered-Handle Ratchet Wrenches

Also known as a construction or spud handle, wrenches use the pointed end to align bolt holes.

Electrical-Insulating
Ratchet Wrenches

Insulated to protect against accidental contact with live electrical circuits, these wrenches are tested to 1,000 volts to meet IEC 60900.

Nonsparking Ratchet Wrenches

Made of aluminum-bronze, these wrenches satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Bolt-Through Ratchet Wrenches

Bolt-Through Ratchet Wrenches

Bolts and threaded rod pass through these wrenches when used with bolt-through sockets.

Tight-Clearance Ratchet Wrenches

Rather than teeth, these wrenches use a series of rollers to engage the ratchet, enabling work in the tightest of spaces. Also known as silent ratchets, they don't make the traditional click sound when turned.

Fingertip Ratchet Wrenches

Fingertip Ratchet Wrenches

Turn sockets in the most confined spaces.

Flex-Head Ratchet Wrenches

Pivot the head to access fasteners in tight spots.

Offset Flex-Head Ratchet Wrenches

The 25° offset head provides clearance when reaching over obstructions.

Quick-Release Flex-Head
Ratchet Wrenches

No need to pull the socket off the tool—push a button to release.

Ratcheting Screwdriver-Style
Socket Handles

The ratcheting mechanism turns sockets quickly.

Flex-Head Wrench Handles

Pivot the head for access to fasteners in tight spots.

Torque Wrenches

Adjustable Torque Wrenches

Set the desired torque and the wrench indicates when it's reached with an audible click and an impulse in the grip.

Flex-Head Adjustable
Torque Wrenches

Pivot the head to access fasteners in tight spots.

No-Reset Adjustable
Torque Wrenches

Unlike most torque wrenches, you don’t have to return the torque setting to the lowest value after use. These tools are also known as split-beam torque wrenches.

Quick-Release Adjustable
Torque Wrenches

No need to pull the socket off the tool—push a button to release.

Electrical-Insulating
Adjustable Torque Wrenches

Insulated to protect against accidental contact with live electrical circuits, these wrenches are tested to 1,000 volts to meet IEC 60900.

Nonsparking Torque Wrenches

Made of beryllium copper, these wrenches satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Economy Torque-Measuring
Wrenches

These wrenches have an accuracy of ±3.5%.

High-Accuracy
Torque-Measuring Wrenches

Trust the precision of your measurements—these wrenches are accurate to ±1%.

Torque-Measuring Wrenches

Measure with an accuracy of ±2%.

Data-Recording Torque-and-Angle
Measuring Wrenches

The most advanced torque wrenches we offer, these tools store and recall up to 1,500 torque and angle measurements.

T-Handle Slip-Release
Factory-Set Torque Wrenches

Turn sockets from above when there's not room to swing a standard wrench handle.

Slip-Release Factory-Set
Torque Wrenches

These wrenches slip to disengage and stop turning the fastener when the set torque is reached, preventing overtightening.

Click-Style Factory-Set
Torque Wrenches

When the set torque is reached, these wrenches signal with an audible click and an impulse in the grip.

Air-Powered Ratchet Wrenches

Standard Duty Air-Powered
Ratchet Wrenches

Use these tools for general shop applications.

Heavy Duty Air-Powered
Ratchet Wrenches

Built for durability, these wrenches handle the demands of high-volume production and tough maintenance applications.

Cordless Ratchet Wrenches

Cordless Ratchet Wrenches

Ratcheting Box-End Tight-Clearance Offset Socket Sets

Ratcheting Box-End
Tight-Clearance Offset Socket Sets

A ratchet mechanism allows you to turn fasteners without removing and repositioning the socket.

Socket Retaining Rings

Two-Piece Socket Retaining Rings

One-Piece Socket Retaining Rings

Ratcheting Box-End Tight-Clearance Offset Sockets

Ratcheting Box-End
Tight-Clearance Offset Sockets

A ratchet mechanism allows you to turn fasteners without removing and repositioning the socket.

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