30 mm Wrenches | McMaster-Carr

A spline-shaped box end turns spline, hex, and 12-point fasteners. This shape also gets a better grip on rounded fasteners that can be difficult to turn with a traditional wrench.

Premium Combination Wrench Sets

Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish.

Open-End Wrenches

Two-Head Open-End Wrenches

60° Angle Open-End Wrenches

One head is angled 60° for access to hard-to-reach fasteners. These are also known as ignition wrenches.

Tight-Clearance Open-End Wrenches

The slim head fits into tight spaces and around thin fasteners.

Secure-Grip Open-End Wrenches

The opening shape makes more contact with fasteners for a better grip than standard open-end wrenches. These tools are also known as flare-nut or line wrenches.

Striking Open-End Wrenches

Strike the handle with a hammer to break stuck fasteners free. These are also known as slugging wrenches.

Open-End Wrench Sets

60° Angle Open-End Wrench Sets

One head is angled 60° for access to hard-to-reach fasteners. These are also known as ignition wrenches.

Tight-Clearance Open-End Wrench Sets

Fit the narrow head into tight spaces and around thin fasteners.

Square Drive Sockets and Ratchet Wrenches

Wrench Heads

Reach nuts obstructed by a fluid line or other barrier with these wrench heads.

6-Point Sockets

The hex shape achieves the best possible grip on hex fasteners to prevent rounding their points.

Nonsparking 6-Point Sockets

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

Extra-Deep 6-Point Sockets

With more than double the clearance of standard sockets, these sockets access nuts on extra-long bolts.

6-Point Stainless Steel Sockets

Designed for use with stainless steel fasteners, these sockets are more corrosion resistant than steel sockets and less likely to flake.

12-Point Sockets

Universal-Fit Sockets

Turn multiple shapes and sizes of fasteners with a single socket.

6-Point Impact Sockets

Achieve the best possible grip on hex fasteners and prevent rounding.

Thin-Wall 6-Point Impact Sockets

With a smaller OD than standard sockets, these fit between tightly spaced fasteners.

12-Point Impact Sockets

The 12-point shape quickly positions on hex fasteners.

Impact Hex Bit Sockets

These sockets are made to withstand the high torque and force of impact tools.

6-Point Socket Sets

Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish.

Extra-Deep 6-Point Socket Sets

With more than double the clearance of standard sockets, the sockets in these sets access nuts on extra-long bolts.

12-Point Socket Sets

Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish.

6-Point Impact Socket Sets

The hex shape grips hex fasteners and prevents rounding. These sockets are made to withstand the high torque and force of impact tools.

Dual-Size 12-Point Impact Socket Sets

Use one socket to switch between two fastener sizes.

Box Wrenches

Deep-Offset Box Wrenches

The heads are angled to provide clearance around obstructions.

Ratcheting Box Wrenches

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

L-Keys

Turn fasteners from either end and reach into tight spots.