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Allen Wrenches

top picks

What’s in the Toolbox

tool

features

options

KLEIN TOOLS Hex Key Allen Wrench 9 Piece Metric Set (LMK10)

  • The L-style hex keys are organized in a convenient, durable caddy
  • Caddy contains a unique locking feature and marked slots for each key
  • Made in USA with top-grade alloy steel
  • Heat-treated and tempered for added strength and durability
  • Rust and corrosion resistance surfaces
  • Extra length for hard-to-reach applications

Option 1
1 PACK
(1) Hex Key Allen Wrench 9 Piece Metric Set (LMK10)
(9) Hex Sizes from 1.5mm to 10mm

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KLEIN TOOLS Hex Key Allen Wrench, Various Options

  • Long arm ball end for working at an angle
  • State of the art, dual material Journeyman handles provide a better grip without sacrificing tool strength and durability
  • Treated steel for long term torsion resistance and rust prevention
  • Double ended hex key is adaptable for working in tight spaces or high torque applications
  • Easy size identification with markings on top of every handle

Option 1
1 PACK
(1) Hex Key Allen Wrench 10 Piece SAE Set, with 150mm (6”) Blades and Stand Included (JTH610EB)
(10) SAE 3/32”, 7/64, 1/8”, 9/64”, 5/32”, 3/16”, 7/32”, 1/4”, 5/16” and 3/8”

Option 2
1 PACK
(1) Hex Key Allen Wrench 8 Piece Metric Set, with 150mm (6”) Blades and Stand Included (JTH68MB)
(10) Metric 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm and 10mm

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CRESCENT Hex Key Allen Wrench 13 Piece SAE Set with Ball End (CHKLABALL13)

  • Ball end hex keys permit an angle of entry of up to 25° for easier access
  • Long length for increased access
  • Short end for higher torque
  • High strength alloy steel for strength and durability
  • Black oxide finish resists corrosion
  • Meets or exceeds ASME B18.3

Option 1
1 PACK
(1) Hex Key Allen Wrench 13 Piece SAE Set, with Ball End (CHKLABALL13)
(10) SAE 0.050″, 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 3/16″, 7/32″, 1/4″, 5/16″ and 3/8″

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CRAFTSMAN Hex Key Allen Wrench 20 Piece SAE/mm Set with Ball End, Various Options

  • Strong steel hex keys with black oxide coating to grip fasteners
  • Convenient storage rack for hex keys and handle keeps this set together in your toolbox
  • Ball end for angled access
  • Hex keys can be used on everything from DIY projects, fixing furniture, bicycles, electronics, cars and motorcycles
  • Universal T-handle Adapter fits both SAE and Metric Hex keys. Quick convert design easily upgrades L-key to T-handle for added torque (Option 2 and Option 3 only)
  • Full lifetime warranty

Option 1
1 PACK
(1) Hex Key Allen Wrench 20 Piece Set, with Ball End (CMHT26020)
(10) SAE 1/16”, 5/64”, 3/32”, 1/8”, 5/32”, 3/16”, 7/32”, 1/4”, 5/16” and 3/8”
(10) Metric 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm and 10mm

Option 2
1 PACK
(1) Hex Key Allen Wrench 20 Piece Set, with Ball End (CMHT26028)
(10) SAE 1/16”, 5/64”, 3/32”, 1/8”, 5/32”, 3/16”, 7/32”, 1/4”, 5/16” and 3/8”
(10) Metric 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm and 10mm
(1) Universal T-handle Adapter fits both SAE and Metric Hex Keys

Option 3
1 PACK
(1) Universal T-handle Adapter fits both SAE and Metric Hex Keys (CMHT26023)

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MILWAUKEE Hex Key Allen Wrench 8 Piece Metric Folding Set (4932480978)

  • Made from durable metal for long-lasting use
  • Includes all 8 common hex keys for versatility
  • Folds compactly for easy storage and transport
  • Includes metric sizes from 4mm to 10mm

Option 1
1 PACK
(1) Hex Key Allen Wrench 8 Piece Metric Folding Set (4932480978)

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STANLEY Hex Key Allen Wrench 8 Piece Metric Folding Set (STHT71800)

  • This unit features durable composite construction
  • The rubber side inserts allow for a secure grip and the chamfered edge helps guide the wrench for a smooth, easy entry of the hex key
  • It has size markings printed on the hex key body for easy identification
  • This tool meets ANSI specifications

Option 1
1 PACK
(1) Hex Key Allen Wrench 8 Piece Metric Folding Set 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm and 8mm (STHT71800)

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STANLEY Hex Key Allen Wrench 9 Piece SAE Folding Set (STHT71801)

  • This unit features durable composite construction
  • The rubber side inserts allow for a secure grip and the chamfered edge helps guide the wrench for a smooth, easy entry of the hex key
  • It has size markings printed on the hex key body for easy identification
  • This tool meets ANSI specifications

Option 1
1 PACK
(1) Hex Key Allen Wrench 9 Piece SAE Folding Set 5/32″, 9/64″, 1/8″, 7/64″, 3/32″, 5/64″, 3/16″, 7/32 and 1/4″ (STHT71801)

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STANLEY Hex Key Allen Wrench 22 Piece SAE/mm Set (85-753)

  • Wrenches meet or exceed ANSI/ASME B18.3 specifications
  • Chamfered hex key edges to give better fit and reduce stripped fasteners
  • Black oxide finish resists rust
  • Durable caddy keeps keys organized and has marked slots for each key
  • Limited lifetime warranty

Option 1
1 PACK
(1) Hex Key Allen Wrench 22 Piece SAE/mm Set (85-753)
(13) SAE 3/8”, 5/16”, 1/8”, 1/4″, 7/32”, 3/16”, 5/32”, 3/32”, 1/16”, 0.05”, 9/64”, 7/64” and 5/64”
(9) Metric 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm and 10mm

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STANLEY Hex Key Allen Wrench 12 Piece SAE Set with Ball End (69-9001)

  • Ball end for angled or straight driving
  • Complete with plastic holder
  • Hardened and tempered
  • High efficiency, performance and maintainability
  • Offer you ultimate comfort while working

Option 1
1 PACK
(1) Hex Key Allen Wrench 12 Piece SAE Set, with Ball End (69-9001)
(12) SAE 1/16”, 5/64”, 3/32”, 7/64”, 1/8”, 9/64”, 5/32”, 3/16”, 7/32”, 1/4”, 5/16” and 3/8”

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a Tool for Every Job

Allen wrenches, also known as hex keys or hex wrenches are useful tools in various trades and industries. These L-shaped tools feature a hexagonal (six-sided) tip that fits into hexagonal recesses or sockets in bolts, screws and other fasteners. They are widely used for assembling and disassembling furniture, bicycles, machinery and electronic devices where hexagonal fasteners are established.

The primary purpose of Allen wrenches is to provide a secure and efficient means of tightening or loosening hexagonal fasteners. Their design allows for a snug fit reducing the risk of stripping or damaging the fastener which is common with other types of wrenches or screwdrivers. This makes Allen wrenches particularly valuable in tasks requiring precision and torque control such as in mechanical repairs, automotive maintenance and assembly work.

In trades like carpentry and furniture assembly, Allen wrenches are essential for assembling modular furniture, cabinets and shelving units that use hex bolts for structural stability. Their compact size and ability to reach recessed fasteners in tight spaces make them ideal for construction and installation projects where accessibility is limited. Their versatility extends to electronic equipment assembly where precise torque application is crucial to avoid damaging delicate components.

Allen wrenches contribute to the efficiency of assembly and maintenance tasks by streamlining the process of tightening and loosening fasteners. They are available in various sizes to accommodate different hexagonal socket dimensions ensuring compatibility with a wide range of fasteners used in industrial and residential settings. Allen wrenches are valued for their simplicity, effectiveness and ability to facilitate precise and reliable fastening operations across diverse trades and applications.

BUYERS GUIDE

Allen Wrenches

Types of Allen Wrenches:

When purchasing Allen wrenches it’s important to understand the different types available. L-shaped wrenches are the most common and versatile offering excellent leverage and reach making them suitable for a wide range of tasks. T-handle wrenches on the other hand provide a better grip and greater torque making them ideal for heavy duty applications and tasks requiring more force. Folding sets are compact and portable perfect for on the go repairs and convenient storage. Some sets also include ball-end wrenches which allow for greater flexibility and can be used at an angle providing easier access to hard to reach fasteners. Consider the type that best suits your specific needs and applications to ensure maximum efficiency and comfort.

Material and Durability:

The material and construction of Allen wrenches are crucial for durability and long-term performance. Look for wrenches made from high quality materials such as chrome-vanadium steel or S2 tool steel. These materials are known for their strength and resistance to wear and corrosion. A durable set of Allen wrenches will withstand frequent use and provide reliable performance over time.

Size Range and Compatibility:

Choose Allen wrench sets that offer a comprehensive range of sizes to ensure compatibility with various fasteners. A good set should include both metric and standard (imperial) sizes covering all possible applications. This versatility is particularly important for tradespeople who work with diverse equipment and machinery as it allows them to handle any hex fastener they encounter. Having a wide range of sizes at your disposal eliminates the need for multiple sets and ensures you always have the right tool for the job enhancing efficiency and convenience.

Handle Design and Ergonomics:

The design and ergonomics of the handle significantly impact comfort and ease of use. Look for wrenches with ergonomic handles that reduce hand fatigue during extended use. T-handle designs in particular provide a more comfortable grip and better leverage making it easier to apply torque. Cushioned grips and non-slip surfaces can further enhance comfort and control especially for tasks that require significant force or involve repetitive motion. Ergonomically designed wrenches not only improve user comfort but also increase productivity by allowing you to work longer without discomfort.

Precision and Fit:

Precision is key when using Allen wrenches to avoid damaging fasteners. Consider wrenches with accurately machined tips that fit snugly into hexagonal sockets. A precise fit reduces the risk of stripping or rounding out the fastener ensuring secure and efficient fastening. Look for wrenches with chamfered edges which make it easier to insert the tool into the fastener and provide a smooth precise fit. Precision and fit are particularly important in applications where accuracy is critical such as in electronics, automotive and machinery assembly.

Accessibility and Reach:

Consider the reach and accessibility of the Allen wrenches especially for tasks involving recessed or hard to reach fasteners. Longer wrenches or those with ball-end tips can provide better access and flexibility allowing you to work in confined spaces with ease. Ball-end wrenches in particular can be used at an angle making it easier to access fasteners that are difficult to reach with standard wrenches. This feature is especially useful in complex assemblies and tight spaces where maneuverability is limited. Choosing wrenches with enhanced reach and accessibility can greatly improve efficiency and ease of use in challenging work environments.

Storage and Organization:

Proper storage and organization of Allen wrenches are essential to prevent loss and damage. Look for sets that come with a storage case or organizer keeping all sizes neatly arranged and easily accessible. A well organized set can save time and frustration during use ensuring that you can quickly find the right size wrench when needed. Some storage solutions also offer portability making it easy to transport your wrenches to different job sites. Consider the durability and design of the storage case as a sturdy and well designed organizer can further enhance the longevity and usability of your wrenches.

Price and Value:

Evaluate the price of Allen wrench sets in relation to their features material quality and included accessories. While it’s tempting to opt for cheaper options, investing in a high quality set can offer better long term value through enhanced durability and performance. Balance your budget with the overall value provided by the wrenches.

UNVEILING THE pros AND conS

Allen Wrenches

pros

  • Allen wrenches provide a precise fit into hexagonal socket fasteners minimizing the risk of stripping or damaging the fastener compared to other types of wrenches or screwdrivers. This precision is crucial in applications where exact torque application is necessary to ensure secure and reliable fastenings such as in mechanical assembly, electronics and furniture assembly.
  • Allen wrenches are versatile tools used across various trades and industries. They are essential in assembling furniture, bicycles, machinery and electronic devices that utilize hexagonal socket fasteners. Their ability to handle both metric and standard sizes makes them suitable for a wide range of tasks in industrial, automotive, construction and DIY projects.
  • The compact size and L-shaped design of Allen wrenches allow them to reach and operate in tight or recessed spaces where other tools may not fit. This accessibility is particularly valuable in assembly and maintenance tasks where maneuverability is limited such as installing cabinetry, assembling electronics or working on machinery with confined access points.
  • Due to their hexagonal design and snug fit into hexagonal sockets, Allen wrenches experience minimal tool slippage during use. This reduces the risk of injury and damage to surrounding surfaces compared to tools that may slip or lose grip when applying torque. It enhances safety and precision especially in critical applications requiring controlled tightening.

cons

  • While effective for many applications Allen wrenches may have limitations in applying high torque compared to wrenches with longer handles or ratcheting mechanisms. This can be a drawback in tasks requiring significant force or when dealing with stubborn fasteners that require extra leverage for removal.
  • Extended use of Allen wrenches especially L-shaped models without ergonomic handles can lead to hand fatigue and discomfort. This is particularly noticeable in tasks requiring repetitive motion or prolonged periods of tightening or loosening fasteners. T-handle or cushioned grip models can mitigate this issue to some extent.
  • In some cases the recessed nature of hexagonal sockets may pose challenges in accessing fasteners particularly when they are located deep within machinery or enclosed spaces. This limitation may require additional tools or accessories to facilitate access and effective use of Allen wrenches in such scenarios.
  • Certain specialized applications may require tools other than Allen wrenches due to specific fastener designs or torque requirements. For example, fasteners with non-standard shapes or those requiring adjustable torque settings may necessitate the use of torque wrenches or other specialized tools instead of Allen wrenches.