The Best allen key size chart of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best allen key size chart of 2022. Check our ranking below.

2,577 (random num) Reviews Scanned

Rank No. #1

EFFICERE 30-Piece Premium Hex Key Allen Wrench Set, SAE and Metric Assortment, L Shape, Chrome Vanadium Steel, Precise and Chamfered Tips | SAE 0.028-3/8 inch, Metric 0.7-10 mm | In Storage Case

▲ WIDE APPLICATIONS - A perfect all-purpose hex key set to keep at home or jobsite for general household projects, furniture installation, garage works, bicycle and motorcycle repairs, machinery, equipment maintenance and many other functions
▲ PREMIUM QUALITY - Professional grade heat treated chrome vanadium steel construction provides added strength to reduce wear out, and withstand extended daily use to ensure maximum durability
▲ PRECISE AND CHAMFERED TIP - Precisely machined and chamfered hexagonal ends offer a snug fit and smooth insert into fasteners, and protect your hardware from rounding off
▲ CLASSIC L-SHAPED DESIGN - Versatile long / short arm design provides additional reach for deep work spots on the long end and extra leverage for tight fastener on the other short end
▲ STAY ORGANIZED - Comes in a compact and foldable storage case, with size indexed individual slot for each wrench for quick size selection and easy organizing

SaleRank No. #2

EKLIND 10111 Hex-L Key allen wrench - 11pc set SAE Inch Sizes .050-1/4 Short series

MADE IN AMERICA- High quality, Industrial Grade Professional Tools made in the U.S.A.
SMALL SAE SET contains all of the smaller, common, popular INCH Sizes:.050, 1/16, 5/64, 3/32, 7/64, 1/8 , 9/64, 5/32, 3/16, 7/32, & 1/4
EKLIND hex keys (allen wrenches) are used to drive internal hexagon socket (allen head) fasteners
OPTIMUM STRENGTH- These EKLIND tools are made with EKLIND Alloy Steel that is heat treated, quenched and tempered for optimum strength, torque and ductility for safety and coated with a rust resistant finish
IDENTIFY YOUR TOOLS- Inch sizes are color coded in red so you can reach for the correct tool quickly.KEEP YOUR KEYS ORGANIZED- A plastic holder firmly holds each key in a sized-marked hole so you always have the size you need at-hand.MEETS OR EXCEEDS ALL APPLICABLE STANDARDS- EKLIND tools meet or go beyond the standard regulations set forth in ANSI, ASME, RoHS, REACH, CA Prop 65 and Dodd-Frank Conflict Minerals Legislation

Rank No. #3

DISEN 25-Piece Folding Allen Key Set - 3-Pack SAE & Metric Hex Key, Torx Star Key Set, Portable Keyhook, Heat Treated Chrome Vanadium Steel Allen Wrenches

【Premium Material】DISEN Allen Key Sets are made of high quality heat treated CR-V 6150 of HRC 53-60 with great hardness and durability, and finished with black oxide
【Multiple Size Selection】DISEN 25 Pieces Allen Key Sets include SAE, Metric and Torx Star Sizes. SAE: 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4. Metric: 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm. Torx Star: T9, T10, T15, T20, T25, T27, T30, T40
【Compact Design】Each allen key can be folded into a small handle made of soft rubber and ABS material with a keyhook, easy to carry and can be put into pockets or tool bags. Each key is stamped with specific size so that you can always pick the right size to use
【Useful Tools】DISEN Allen Wrench Key Sets are useful tools and small enough to go into the tight space where traditional hex key can not reach. You can use them to easily tighten or loosen the bolt and nut, suitable for auto repair, DIY project, and household appliance maintenance
【Quality Guarantee】We assure you that every allen key has been tested strictly to meet the industrial standard of hardness and durability. They can last for a lifetime with normal use

Rank No. #4

Hi-Spec 30pc Imperial & Metric Hex Allen Key Wrench Folding Set with Small & Large Sizes. Includes Mini 0.035” Up to Long 10mm

Undo & Tighten with Ease: For all popular household, garage, and DIY hex screws and bolts; perfect for a variety of tasks
Essential Sizes for Any Job: 30-piece set includes 15 metric (0.7mm to 10mm) and 15 imperial (0.028" to 3/8") keys; covers the most commonly used sizes
Built to Last: High torque Cr-V steel alloy construction; rust-resistant black oxide coating with chamfered edges ensures durability and reduces wear
Versatile & Accessible: Short and long arm design fits into tight spaces or provides extra reach when needed; ideal for assembling furniture, installing fixtures, and more
Compact Folding Storage: Comes in a fold-out case with clearly marked sizes; keeps all keys organized and easily accessible for quick use

Rank No. #5

Powerbuilt 9 Pc Torx Star T-Handle Hex Allen Key Wrench Set w/ Speed Sleeves for Fast Spinning Action, Sliding Top Handle for “T” or “L” Shape, Long Shafts, Storage Rack, Auto, Bicycle, Moto - 941646

WORK FASTER: Slide the T-handle to the center position, hold the free-spinning sleeve on the shaft and tighten or loosen those hex head screws at light speed. Slide the T-handle to the end position and cinch that screw down.
REACH FARTHER: The T-50 wrench has an 11" reach. At the other end of the spectrum, the T-10 wrench offers 4-1/2" of reach. And every size in between offers way more reach than L-type hex keys.
GRIP HARDER: You'll love the positive grip and precise fit the friction-treated hex tips offer. That means less chance of rounding and cam-out.
KEEP IT TOGETHER: These sweet wrenches will never be far out of reach with the included storage rack. Hang it on your tool wall, toss it in a toolbox drawer or set it on your benchtop for easy access
GO BIG OR GO SMALL: The set includes T-10, T-15, T-20, T-25 T-27, T-30, T-40, T-45, T-50 Torx key wrenches to fit the most common Torx and Star fasteners

Rank No. #6

T Handle Hex Wrench Allen Wrench Detachable Supplies Lightweight Portable Ergonomic Nonslip Allen Key Bike Repair Tool

【Upgrade Your Toolkit】: Enhance your tool collection with this T handle Allen key, an addition to any toolkit. The wrench features a detachable design that makes it easy to disassemble and store, saving space in your box or workshop
【Material】: Made from chrome vanadium steel, this T handle hex wrench is built to withstand frequent use, making it a reliable choice for both professionals and DIY enthusiasts
【Ergonomic T Handle Design】: The T handle Allen wrench features an ergonomic design, providing a nonslip grip for easy tightening and loosening of screw in any task. Multiple Sizes: 1/2" (12.5mm), 3/8" (10mm), and 1/4" (6.3mm) along with hex interface of 10mm, for enhanced versatility
【Essential for Various Applications】: From furniture assembly to appliance repair, the T handle hex key simplifies your work and ensures secure installation every time
【Versatile Tool for Precision Tasks】: Equipped with a 360 degree rotating feature, this wrench allows for easy maneuverability and access to hard to reach areas, enhancing efficiency during repairs Ideal for electricians, carpenters, and hobbyists alike, this versatile tool is great for job requiring tightening

Rank No. #7

Aymzbd T Handle Hex Wrench Allen Wrench, Detachable Hand Tool Lightweight Accessories Convenient Ergonomic Allen Key for Home Repair

【Versatile Tool for Precision Tasks】: Equipped with a 360 degree rotating feature, this wrench allows for easy maneuverability and access to hard to reach areas, enhancing efficiency during repairs Ideal for electricians, carpenters, and hobbyists alike, this versatile tool is great for job requiring tightening
【Ergonomic T Handle Design】: The T handle Allen wrench features an ergonomic design, providing a nonslip grip for easy tightening and loosening of screw in any task. Multiple Sizes: 1/2" (12.5mm), 3/8" (10mm), and 1/4" (6.3mm) along with hex interface of 10mm, for enhanced versatility
【Essential for Various Applications】: From furniture assembly to appliance repair, the T handle hex key simplifies your work and ensures secure installation every time
【Material】: Made from chrome vanadium steel, this T handle hex wrench is built to withstand frequent use, making it a reliable choice for both professionals and DIY enthusiasts
【Upgrade Your Toolkit】: Enhance your tool collection with this T handle Allen key, an addition to any toolkit. The wrench features a detachable design that makes it easy to disassemble and store, saving space in your box or workshop

Rank No. #8

Vaveren T Handle Hex Wrench Sliding Portable Detachable Hand Tool Versatile Convenient Lightweight Rotating Allen Key for Home Repair

【Upgrade Your Toolkit】: Enhance your tool collection with this T handle Allen key, an addition to any toolkit. The wrench features a detachable design that makes it easy to disassemble and store, saving space in your box or workshop
【Material】: Made from chrome vanadium steel, this T handle hex wrench is built to withstand frequent use, making it a reliable choice for both professionals and DIY enthusiasts
【Ergonomic T Handle Design】: The T handle Allen wrench features an ergonomic design, providing a nonslip grip for easy tightening and loosening of screw in any task. Multiple Sizes: 1/2" (12.5mm), 3/8" (10mm), and 1/4" (6.3mm) along with hex interface of 10mm, for enhanced versatility
【Essential for Various Applications】: From furniture assembly to appliance repair, the T handle hex key simplifies your work and ensures secure installation every time
【Versatile Tool for Precision Tasks】: Equipped with a 360 degree rotating feature, this wrench allows for easy maneuverability and access to hard to reach areas, enhancing efficiency during repairs Ideal for electricians, carpenters, and hobbyists alike, this versatile tool is great for job requiring tightening

Rank No. #9

Aymzbd T Handle Hex Wrench Set Sliding Metric with Storage Rack Lightweight 2/2.5/3/4/5/6/8/10mm Professional Allen Wrench Hex Key

【CR Steel Construction】: Made from quality ALLOY Steel, this T handle hex wrench set is built to withstand frequent use, making it a reliable choice for both professionals and DIY enthusiasts
【Versatile Tool for Precision Tasks】: Ideal for electricians, carpenters, and hobbyists alike, this versatile tool is great for job requiring tightening
【Ergonomic T Handle Design】: The T handle allen wrench set features an ergonomic design, providing a nonslip grip for easy tightening and loosening of screw in any task
【Upgrade Your Toolkit】: Enhance your tool collection with this quality and user friendly T handle allen key set, a addition to any toolkit
【Essential for Various Applications】: From furniture assembly to appliance repair, the T handle hex key simplifies your work and ensures secure installation every time

Rank No. #10

Zxpjkyu T Handle Hex Wrench Bike Repair Tool, Rotating Ergonomic 12.5mm 10mm 6.3mm Detachable Convenient Allen Key Allen Wrench

【Material】: Made from chrome vanadium steel, this T handle hex wrench is built to withstand frequent use, making it a reliable choice for both professionals and DIY enthusiasts
【Ergonomic T Handle Design】: The T handle Allen wrench features an ergonomic design, providing a nonslip grip for easy tightening and loosening of screw in any task. Multiple Sizes: 1/2" (12.5mm), 3/8" (10mm), and 1/4" (6.3mm) along with hex interface of 10mm, for enhanced versatility
【Upgrade Your Toolkit】: Enhance your tool collection with this T handle Allen key, an addition to any toolkit. The wrench features a detachable design that makes it easy to disassemble and store, saving space in your box or workshop
【Versatile Tool for Precision Tasks】: Equipped with a 360 degree rotating feature, this wrench allows for easy maneuverability and access to hard to reach areas, enhancing efficiency during repairs Ideal for electricians, carpenters, and hobbyists alike, this versatile tool is great for job requiring tightening
【Essential for Various Applications】: From furniture assembly to appliance repair, the T handle hex key simplifies your work and ensures secure installation every time

Last update on 2025-03-17 / Affiliate links / Images from Amazon Product Advertising API

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Features: What bells and whistles matter for an allen key size chart?
Specifications: How powerful they are can be measured.
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FAQ:

Q: What is Allen hex key?

A: A hex key or Allen key is a simple tool used to drive bolts and screws with hexagonal sockets in their heads . The tool is usually formed of a single piece of hexagonal rod of hard steel, with blunt ends that are meant to fit snugly into the screw’s socket, bent in an “L” shape with unequal arms.

Q: What is the size of an allen wrench?

A: Allen wrenches come in a myriad of sizes, but in the industrial world where they are used, there are some standardized types. Virtually any inch-based standard set of Allen wrenches will contain the following sizes: 1/8 inch, 3/32 inch, 7/64 inch, 5/32 inch, 3/16 inch, 1/4 inch and 7/32 inch.

Q: What is an allen key set?

A: Allen key set. The Allen key is an everyday tool that goes by many names. Commonly known as a hex key, Allen wrench, zeta key, or hex head, it is a six-sided tool used as a driver for screws, bolts, and other fasteners designed to fit the tool.