Gear Wrenches | McMaster-Carr

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System of Measurement

Drive Size

Wrench Style

Ratcheting or Nonratcheting

Wrench Opening Shape

Head Style

Drive Style

External 12-Point

External Pentagon

External Spline

External Square

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Overall Length

3 1/2" to 5 3/8"

3 1/2" to 5 1/2"

3 3/4" to 5 1/2"

3 7/8" to 5 3/8"

4 1/4" to 6 3/4"

4 1/4" to 9 1/8"

Head Thickness

Finish

Material

Stainless Steel

Number of Pieces

Turn Required to Ratchet

Appearance

Head Offset Angle

Container Type

Fabric Roll-Up Pouch

Plastic Roll-Up Pouch

Opening Angle

Number of Heads

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

RoHS

For Use With

Screws and Nuts

Hole Shape

Round with Keyway

Specifications Met

Fed. Spec. GGG-W-001405

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409 Products

Fastening and Joining

Combination Wrenches

Combination Wrenches

Use the open end when tightening in cramped spaces and the box end when you need extra grip

Box Wrenches

Grip all sides of a fastener to prevent slipping

Fire Hose and Hydrant Wrenches

Fire Hose and Hydrant Wrenches

Open and close hydrant caps, install sprinkler heads, and fasten fire hose fittings

Wrench Heads

Attach to your ratchet wrench and socket extension to turn fasteners where clearance is limited

Fabricating and Machining

Tap and Die Wrench Sets

Tap and Die Wrench Sets

Switch between internal and external threading with interchangeable tap and die adapters

Building and Machinery Hardware

Ratchet Handles

Ratchet Handles

Quickly adjust machine components and valves in tight spaces

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)