McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    65 Products

    Combination Wrenches

    Image of Product. Front orientation. Combination Wrenches. Combination Wrenches.
    Image of Attribute. Front orientation. Contains Annotated. Combination Wrenches.
    Image of Attribute. Front orientation. Contains Annotated. Combination Wrenches.
    Image of Specification. 12-Point Opening. Front orientation. ZoomedIn view. Contains Border. 12-Point Opening. Combination Wrenches.

    12-Point

    Opening

    Your go-to wrenches for routine maintenance. With two different ends, you need fewer tools to tighten and loosen nuts and bolts. The open end slides onto the side of fasteners for adjustments in tight spots. When nuts and bolts won't budge, the box end fully encircles them to apply maximum torque. Drop forged for added strength, these wrenches will be part of your toolbox for life.
    12-Point Opening—The most common opening, these wrenches work on hex and 12-point nuts and bolts. They slide onto hex heads at more angles than 6-point fasteners for quicker engagement, but they're more likely to slip when you apply more torque.
    Corrosion-Resistant Wear-Resistant 420 Stainless Steel—The most corrosion-resistant wrenches we offer. Stronger than other types of stainless steel, they'll withstand years of use without breaking or warping.
    Box End
    Open
    End
    Drive
    Size
    Overall
    Lg.
    Head Offset
    Angle
    Head
    Thick.
    Opening
    Angle
    Head
    Thick.
    Specs.
    Met
    Each
    12-Point Opening
     
    Corrosion-Resistant Wear-Resistant 420 Stainless Steel
    1/4"3 3/4"15°13/64"15°1/8"—000000000000000
    5/16"4 9/16"15°15/64"15°5/32"—00000000000000
    3/8"5 3/8"15°9/32"15°3/16"—00000000000000
    7/16"5 13/16"15°5/16"15°3/16"—00000000000000
    1/2"6 11/16"15°21/64"15°7/32"—00000000000000
    9/16"7 1/16"15°23/64"15°7/32"—00000000000000
    5/8"7 15/16"15°3/8"15°1/4"—00000000000000
    11/16"8 3/8"15°13/32"15°17/64"—00000000000000
    3/4"9 3/16"15°29/64"15°9/32"—00000000000000
    6 mm3 3/4"15°13/64"15°1/8"DIN 311300000000000000
    8 mm4 9/16"15°1/4"15°5/32"DIN 311300000000000000
    10 mm5 3/8"15°9/32"15°11/64"DIN 311300000000000000
    11 mm5 13/16"15°19/64"15°3/16"DIN 311300000000000000
    12 mm6 1/4"15°5/16"15°13/64"DIN 311300000000000000
    13 mm6 11/16"15°21/64"15°7/32"DIN 311300000000000000
    14 mm7 1/16"15°11/32"15°7/32"DIN 311300000000000000
    15 mm7 1/2"15°23/64"15°15/64"DIN 311300000000000000
    16 mm7 15/16"15°3/8"15°1/4"DIN 311300000000000000
    17 mm8 3/8"15°13/32"15°17/64"DIN 311300000000000000
    19 mm9 3/16"15°7/16"15°9/32"DIN 311300000000000000
    21 mm10"15°31/64"15°5/16"DIN 311300000000000000
    22 mm10 3/8"15°1/2"15°5/16"DIN 311300000000000000
    24 mm11 1/4"15°17/32"15°21/64"DIN 311300000000000000
    27 mm11 7/16"15°15/32"15°23/64"DIN 3113000000000000000
    30 mm12 5/8"15°1/2"15°25/64"DIN 3113000000000000000
    32 mm13 3/8"15°35/64"15°7/16"DIN 3113000000000000000
    36 mm14 3/16"15°25/32"15°5/8"DIN 3113000000000000000
    38 mm16 5/16"15°13/16"15°5/8"DIN 3113000000000000000
     

    Adjustable Wrenches

    Image of Product. Plain Grip. Front orientation. Adjustable Wrenches. Adjustable Wrenches, Plain Grip.

    Plain Grip

    Image of Product. Front orientation. Adjustable Wrenches. Adjustable Wrenches, Cushion Grip.

    Cushion Grip

    Image of Specification. Measuring Scale. Front orientation. ZoomedIn view. Contains Border. Adjustable Wrenches. Adjustable Wrenches.

    Measuring

    Scale

    Twist nuts and bolts of various sizes with a single tool that will last for decades. To adjust the width of these wrenches, just spin the thumbwheel—the precision-ground jaws effortlessly glide inward and outward. They won't wobble once in place, so you get a stable grip at every size, every time. All wrenches are drop-forged from alloy steel or stainless steel for durability.
    Corrosion-Resistant 304 Stainless Steel—Made of solid stainless steel, these wrenches won't flake or wear down over time. They resist moisture and mild chemicals better than our other steel wrenches, but they're slightly less strong.
    Cushion Grip—Absorb pressure to make gripping and squeezing the plastic handles more comfortable. They also add slip resistance for a secure hold.
    Plain Grip
    Cushion Grip
    Overall
    Lg.
    Max. Jaw
    Cap.
    Each
    Each
    Corrosion-Resistant 304 Stainless Steel
    4"1/2"00000000000000000000000000
    6"3/4"0000000000000000000000000
    8"15/16"00000000000000000000000000
    10"1 3/16"00000000000000000000000000
    12"1 7/16"00000000000000000000000000
    14 3/4"1 13/16"———00000000000000
    15"1 13/16"0000000000000———0
    17 3/4"2 3/16"———00000000000000
    18"2 5/32"0000000000000———0
    23 3/4"2 9/16"———00000000000000
    24"2 23/64"0000000000000———0
     

    Combination Wrench Sets

    Image of Attribute. Front orientation. Contains Annotated. Combination Wrench Sets.
    Image of Attribute. Front orientation. Contains Annotated. Combination Wrench Sets.
    Image of Specification. 12-Point Opening. Front orientation. ZoomedIn view. Contains Border. 12-Point Opening. Combination Wrench Sets.

    12-Point

    Opening

    With a range of drive sizes and lengths, these wrench sets are your go-to for routine maintenance. With two different ends, you need fewer tools to tighten and loosen nuts and bolts. The open end slides onto the side of fasteners for adjustments in tight spots. When nuts and bolts won't budge, the box end fully encircles them to apply maximum torque.
    12-Point Opening—The most common opening, these wrenches work on hex and 12-point nuts and bolts. They slide onto hex heads at more angles than 6-point fasteners for quicker engagement, but they're more likely to slip when you apply more torque.
    Industrial—Made in the U.S. from high-strength steel or stainless steel, these wrenches are built to last. They’re indispensable for daily maintenance and repair.
    Corrosion-Resistant Wear-Resistant 420 Stainless Steel—The most corrosion-resistant wrenches we offer. Stronger than other types of stainless steel, they'll withstand years of use without breaking or warping.
    No. of
    Pieces
    Drive Size
    Overall Lg.
    Box-End Head
    Offset Angle
    Open-End Opening
    Angle
    Material
    Specs.
    Met
    Each
    Industrial
     
    12-Point Opening
    91/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"3 3/4" to 9 3/16"15°15°420 Stainless Steel—0000000000000000
    116 mm, 8 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 19 mm3 3/4" to 9 3/16"15°15°420 Stainless SteelDIN 3113000000000000000
     

    Double Open-End Wrenches

    Image of Product. Front orientation. Open-End Wrenches. Double Open-End Wrenches.
    Image of Attribute. Front orientation. Contains Annotated. Double Open-End Wrenches.
    Image of Specification. Front orientation. ZoomedIn view. Contains Border. Round Opening. Double Open-End Wrenches.

    Round

    Opening

    Switch between two different-sized fasteners without swapping out your wrenches. The two heads save you time, while reducing the number of tools you need to keep on hand. Drop forged for added strength, these wrenches will be part of your toolbox for life.
    Round Opening—The rounded edges spread force evenly to prevent stripping your fasteners. Use them on hex-head fasteners.
    Corrosion-Resistant Wear-Resistant 420 Stainless Steel—Containing more carbon than 17-4 PH stainless steel, these wrenches stand up to abrasion and impacts for years of use without breaking or warping. They won’t rust in wet and outdoor environments, plus they resist mild acids.
    Corrosion-Resistant High-Strength 17-4 PH Stainless Steel—The strongest stainless steel open-end wrenches we offer withstand force without deforming. They won’t rust in wet and outdoor environments, plus they resist mild acids.
    Drive Size
    Overall
    Lg.
    Opening
    Angle
    Head
    Thickness
    Each
    Round Opening
     
    Corrosion-Resistant Wear-Resistant 420 Stainless Steel
    5/8" × 11/16"8 1/4"15°17/64" × 9/32"000000000000000
    1 1/8" × 1 1/4"11 1/8"15°21/64"00000000000000
    14 mm × 15 mm7 5/8"15°1/4" × 17/64"00000000000000
     
    Corrosion-Resistant High-Strength 17-4 PH Stainless Steel
    1/4" × 5/16"4 3/4"15°13/64"0000000000000
    3/8" × 7/16"6 1/4"15°7/32"00000000000000
    1/2" × 9/16"7"15°15/64"00000000000000
    3/4" × 13/16"8 7/8"15°5/16"00000000000000
    7/8" × 15/16"10 1/4"15°21/64"00000000000000
    1" × 1 1/16"10 3/8"15°5/16"00000000000000
    6 mm × 7 mm5"15°13/64"00000000000000
    8 mm × 9 mm5 3/4"15°13/64"0000000000000
    10 mm × 11 mm6 1/4"15°7/32"00000000000000
    12 mm × 13 mm7"15°15/64" × 1/4"00000000000000
    16 mm × 17 mm8 1/4"15°19/64"00000000000000
    19 mm × 22 mm9 3/8"15°5/16" × 21/64"00000000000000
     

    Square Drive Drum Plug Sockets

    Image of ProductInUse. Shown with Ratchet Wrench (Not Included). Front orientation. Drum Plug Sockets. Square Drive Drum Plug Sockets.
    Image of Product. Front orientation. Drum Plug Sockets. Square Drive Drum Plug Sockets.
    Image of Attribute. Front orientation. Contains Annotated, Border. Square Drive Drum Plug Sockets.

    Shown with Ratchet

    Wrench (Not Included)

    Instead of carrying around a large drum plug wrench, keep these sockets in your toolbox and turn with a ratchet wrench. Also known as bung wrenches, they are used to install and remove screw-in drum plugs.
    For
    Drum Plug
    Style
    Size
    Material
    Square Drive
    Size
    OD
    Overall
    Lg.
    Material
    Each
    2, 4, 5, 6, 7, 8, 123/4", 2"Plastic, Stainless Steel, Steel1/2"1 15/16"2 3/4"Steel00000000000000

    Self-Adjusting Ratcheting Box Wrench Head Sets

    Image of ProductInUse. Wrench and Socket Extension Not Included. Front orientation. Wrench Heads. Self-Adjusting Ratcheting Box Wrench Head Sets.
    Image of Product. Front orientation. Wrench Heads. Self-Adjusting Ratcheting Box Wrench Head Sets.

    Wrench and Socket

    Extension Not Included

    Get a strong grip in tight areas, even on fasteners that are rounded or damaged. Open the spring-loaded jaws in these heads to access a fastener like an open-end wrench; the jaws will automatically close when you push against the fastener. The 6-point opening grips hex heads on all sides. Also known as crowfoot wrenches. Attach one to a socket extension to reach obstructed fasteners. With the ratcheting feature, you can turn the fastener without removing and repositioning the wrench head.
    No. of
    Pieces
    Includes
    Turn Req.
    to Ratchet
    Material
    Wrench Opening
    Shape
    Container
    Type
    Each
    3/8" Square Drive
    6Wrench Heads: 8 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm15°Stainless Steel6-PointFoam Tray0000000000000000
     

    Double Open-End Wrench Sets

    Image of Attribute. Front orientation. Contains Annotated. Double Open-End Wrench Sets.
    Image of Specification. Front orientation. ZoomedIn view. Contains Border. Round Opening. Double Open-End Wrench Sets.

    Round

    Opening

    Keep a range of sizes on hand to switch between two different-sized fasteners without swapping out your wrenches. The two heads save you time and reduce the number of tools you need to keep on hand. Drop forged for added strength, these wrenches will be part of your toolbox for life.
    Round Opening—The rounded edges spread force evenly to prevent stripping your fasteners. Use them on hex-head fasteners.
    Corrosion-Resistant High-Strength 17-4 PH Stainless Steel—The strongest stainless steel open-end wrenches we offer withstand force without deforming. They won’t rust in wet and outdoor environments, plus they resist mild acids.
    No. of
    Pieces
    Sizes Included
    Overall Lg.
    Opening
    Angle
    Each
    Round Opening
     
    Corrosion-Resistant High-Strength 17-4 PH Stainless Steel
    81 1/8" × 1 1/4"
    1" × 1 1/16"
    1/2" × 9/16"
    1/4" × 5/16"
    3/4" × 13/16"
    3/8" × 7/16"
    5/8" × 11/16"
    7/8" × 15/16"    		4 3/4" to 11 1/8"15°00000000000000000
     

    Torque-Limiting Drum Plug Wrenches

    Image of Product. Front orientation. Drum Plug Wrenches. Torque-Limiting Drum Plug Wrenches, Style B.
    Image of Attribute. Front orientation. Contains Annotated, Border. Torque-Limiting Drum Plug Wrenches.

    Style B

    When the set torque is reached, these wrenches slip to disengage and stop turning the plug, preventing overtightening. Also known as bung wrenches, they are used to install and remove screw-in drum plugs.
    For Drum Plug
    Style
    Style
    Material
    Gasket
    Material
    Size
    Torque
    Setting
    Torque-Limiting
    Direction
    Clockwise
    Overall
    Lg.
    Material
    Grip
    Material
    Each
     
    ft·lbf
    B1, 7Stainless Steel
    		Rubber
    		3/4"
    2"    		13 ft·lbf
    20 ft·lbf    		Clockwise-2 ft·lbf to 2 ft·lbf
    -2 ft·lbf to 2 ft·lbf    		14"SteelRubber
    		00000000000000
     
    back to top