Metric Open-End Wrench Sets | McMaster-Carr

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4,105 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

Open-End Wrenches

Open-End Wrenches

Tighten and loosen fasteners from the top or the side

Adjustable Wrenches

Adjustable Wrenches

Adjust the jaws to fasten different size nuts, bolts, or workpiece

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Box Wrenches

Grip all sides of a fastener to prevent slipping

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Pipe Wrenches

Serrated jaws grasp and turn pipe, conduit, and fittings

Drum Plug Wrenches

Drum Plug Wrenches

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

Socket Wrenches

Socket Wrenches

Apply torque to turn nuts, bolts, and other fasteners without rounding the heads

Spanner Wrenches

Spanner Wrenches

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

Bit Sockets

Turn fasteners with an internal drive style without slipping and damaging the drive

Tank Wrenches

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

Pipe/Valve Wheel Wrenches

Pipe/Valve Wheel Wrenches

Grip and turn pipe with one end and loosen valve wheels with the other

Valve Wheel Wrenches

Valve Wheel Wrenches

Supply the leverage needed to turn hand wheels on large valves

Socket Adapters

Socket Adapters

Convert the drive size of sockets to fit your wrench or hand tool

Drain Wrenches

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

Oil Filter Sockets

Oil Filter Sockets

Twist with a ratchet wrench to adjust filters and other round objects in tight spots

Strap Wrenches

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

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Shut-Off Valve Wrenches

Shut-Off Valve Wrenches

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

Socket Inserts

Slip into sockets to keep fasteners from falling out

L-Keys

Turn fasteners from either end and reach into tight spots

T-Handle Keys

To turn fasteners in hard-to-reach spots, there's a long shaft and a grip for your whole hand

Screwdrivers

Tighten and loosen screws

Fastening Tool Kits

Fastening Tool Kits

Secure fasteners and complete a variety of other maintenance tasks

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Torque-Control Flag-Handle Keys

Torque-Control Flag-Handle Keys

Used to install carbide inserts in cutting tools, a handle limits the amount of torque generated

Driver Shafts

Attach to a handle to create your own driver tool, or pair with socket wrenches and power tools

Impact Drivers

More powerful than drills to drive screws through dense material and loosen stuck fasteners

Fabricating and Machining

Pliers

Grip, bend, and twist wire and other small workpieces

Locking Pliers

Clamp workpieces and lock them in place to keep your hands free

Tap and Die Wrench Kits

Tap and Die Wrench Kits

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

Containers, Storage, and Furniture

Wrench Organizers

Wrench Organizers

Keep wrenches in order at your workstation or when carrying them around your facility

Socket Organizers

Socket Organizers

Arrange sockets at your workstation or carry them neatly around your facility

Measuring and Inspecting

Torque Gauges

Test the accuracy of torque wrenches and screwdrivers

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