Ring Wrenches | McMaster-Carr

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System of Measurement

Drive Size

Wrench Style

Wrench Opening Shape

Head Style

Sold As

Drive Style

External 12-Point

External Pentagon

External Spline

External Square

Ratcheting

Overall Length

3 1/4" to 5 1/2"

3 3/8" to 4 5/16"

3 1/2" to 5 3/8"

3 1/2" to 5 1/2"

3 19/32" to 8 41/64"

Finish

Phosphate Coated

Urethane Coated

Material

Stainless Steel

Head Thickness

Appearance

Circle Diameter

15/32" to 35/64"

25/32" to 3 15/16"

63/64" to 1 7/64"

1 3/16" to 1 17/64"

1 11/32" to 1 27/64"

1 3/8" to 2 3/8"

Length

3 1/4" to 5 1/2"

3 3/8" to 4 5/16"

3 1/2" to 5 3/8"

3 1/2" to 5 1/2"

3 19/32" to 8 41/64"

For Use With

Fire Hose Fittings

Rings, Flanges, and Collars

Round and Irregular Objects

Screws and Nuts

Shut-Off Valves

Spanner Wrench Style

Relative Length

RoHS

Pin Diameter

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Wrench Type

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

Head Offset Angle

How can we improve?

1,154 Products

Fastening and Joining

Spanner Wrenches

Spanner Wrenches

Grab onto holes and slots to turn collars, bearings, and other machine tool components

Box Wrenches

Grip all sides of a fastener to prevent slipping

Combination Wrenches

Combination Wrenches

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

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Strap Wrenches

Grip plastic and high-polished pipe, tubing, hand wheels, and filters without marring the surface

Wrench Heads

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

Shut-Off Valve Wrenches

Shut-Off Valve Wrenches

Turn hard-to-reach valves on gas lines, faucets, toilets, and sinks

Backup Wrenches

Backup Wrenches

Pair with a head and handle to create a wrench that keeps nuts from turning as you tighten bolts

Tank Wrenches

Turn valve stems, regulator inlet nuts, and caps on welding tanks

Drain Wrenches

Install and remove drain traps and fittings, overflow outlets, and toilet inlet spuds

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Drum Plug Wrenches

Drum Plug Wrenches

Install and remove screw-in drum plugs; also known as bung wrenches

Fire Hose and Hydrant Wrenches

Fire Hose and Hydrant Wrenches

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

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