The 10 Best Allen Wrench Sets
Updated by · How we research
Ten Allen wrench sets compared, from ball-end L-keys to T-handles and fold-ups. The Wera 950/9 Hex-Plus leads for its grip and color-coded sizes. When users buy our independently chosen editorial choices, we may earn commissions to help fund the Wiki.
An Allen wrench set lives or dies at the tip. A key that fits loosely, or a metric key forced into an inch screw, rounds out the socket and can strand the screw for good, so hard steel and a snug fit count for more than the piece count on the box. This list is for home fixers, cyclists, furniture builders and shop workers.
Editor's Notes
October 19, 2026, by Ezvid Wiki Admin:
The Wera 950/9 Hex-Plus now leads this list. Its colored sleeves end the hunt for the right size, and its tip shape is built to resist stripping worn screws. The page now covers bent L-keys, T-handles and folding sets in inch and metric sizes. To choose, we set the comparisons from Wirecutter, Bob Vila, ToolGuyd and CNCCookbook against each maker's steel, tip and warranty terms, and read machinists' comments on which tips round off. The Bondhus 13390 and Bondhus GorillaGrip stay. The Sunex 2637 left because it's an impact socket set for air tools, and the two older Tekton sets gave way to the Tekton KLX91203. The Stanley 85-753, Neiko 10075A, XtremepowerUS Xtr-4475 and DeWalt DWHT70262 went because better-documented sets do the same jobs.
May 25, 2021:
We thought the last editor for this page did a decent job of putting together a nice mix of options – including T-handle styles like the Bondhus 13390, L keys like the Wera 950 and ratchet-ready hardware sets like the Neiko 10075A – but we noticed that their was no folding models to speak of — with the exception of the XtremepowerUS Xtr-4475, a kit that includes a couple such tools, but as more of a sideshow to complement its main set of keys. With that in mind, we eliminated the Wiha 36986 and Workpro WO22018A, which were both unavailable at the time of this writing, in order to make room for a couple of new, folding choices.
If you work in a trade that requires the regular use of hex wrenches, you might be shaking your head right now, and that makes sense; if you’re thinking that there’s no room for a folding option on a best-of list, you may make a fair argument. Admittedly, if you give me a choice between a comfortable T-handle or a folding option, in the moment I’m almost sure you choose the T-handle. But for all sorts of professionals, including myself, who rarely require an Allen key, but still feel like they should keep a comprehensive set in their tool bag, folding options can present a great solution. They’re compact, fairly functional, typically quite affordable and – most importantly – they completely eliminate the frustrating prospect of possibly losing a key somewhere along the way.
Considering all that, we added the DeWalt DWHT70262 and Bondhus GorillaGrip 12553 to our rankings. The DeWalt option is an eight-in-one tool that caught our eye with its three-position locking functionality, which is quite an uncommon feature for this sort of equipment. It’s available in both metric and imperial configurations, but if you’re the sort of person who likes to have both, then you might be better off with the Bondhus option, which comprises one set of metric keys, another set of SAE wrenches and even a bonus set of Torx drivers, offering a total of 24 implements (seven imperial, eight Torx and nine metric). While it does lack the DeWalt’s slick locking functionality, it also come to the table with a lot of extra tool for not that much extra cash, which might be the better option for somebody who will be using these keys infrequently.
If you’re considering this investment as part of your bike repair kit, we also maintain a separate list of bicycle torque wrenches which might be more up your alley.
December 27, 2019:
Removed the Titan Tools Ball Tip because of concerns that the steel used had low tensile strength. Added the Wera 950.
Hex wrenches come in several varieties - allen keys, sockets, and T-handles among others. If you're a professional mechanic or millwright, you'll likely need a set of each. The Allen keys allow for the greatest accessibility in virtue of their angled shape. The T-handles allow for slightly less accessibility but excellent leverage and therefore torque. The sockets allow for the least accessibility but provide the means for the greatest torque when paired with a ratchet or impact wrench - if an impact wrench is used, make sure that the sockets used are impact approved, otherwise they might shatter. For these reasons, the hex wrench type was not taken into account in the rankings.
Working on machines is inherently dangerous and all safety protocols should be observed to avoid personal injury or damage to equipment.
October 16, 2018:
Removed the Ares Ball Key from the list after noticing reports that the ball ends of the wrenches tend to lack precision and accuracy. Researched the Sunex 2637 and added it into a prominent position as a high-quality comprehensive set that can be used for a variety of applications.
Special Honors
PB Swiss Tools This Swiss maker's RainBow hex keys are color-coded by size and laser-marked with a serial number, and the company backs them with a lifetime guarantee. They cost far more than most sets and suit machinists and serious hobbyists who want premium keys. pbswisstools.com
Wright Tool Anyone who needs hex bits for a ratchet rather than loose keys should look at Wright Tool's hex bit sockets. They're made in Barberton, Ohio, and the bits can be swapped out when one breaks. wrighttool.com
Ball End Or Straight End: Reach Versus Torque
A useful habit: spin the screw in with the ball, then flip the key and finish with the short straight end.
Most L-keys now have a ball on the long arm. The ball lets the key enter a screw at an angle, around 25 degrees on the Bondhus and Wiha sets and up to 30 on Eklind's double-ball keys, so you can spin a screw you can't line up with. Bondhus introduced the ball end in 1964 (Wikipedia).
The price is strength. The neck behind the ball is thinner, and the ball touches the socket at points rather than along whole faces, so it can't take full torque. Bob Vila's guide recommends the ball end for reach and speed and a straight end for the final snug or for breaking a tight screw loose. That's why most ball-end sets keep a straight short arm. A useful habit: spin the screw in with the ball, then flip the key and finish with the short straight end.
If you dislike ball ends, straight-end sets still exist; ToolGuyd points to Bondhus's plain versions for people who want full contact every time.
Choosing An Allen Wrench Set: Inch, Metric Or Both
Hex keys are sized across the flats of the hexagon. Metric keys follow ISO 2936, and inch keys follow ASME B18.3. The two systems don't swap. A 4-millimeter key in a 5/32-inch socket feels close, but it's loose enough to round the corners, and a rounded socket is the usual way a screw gets stuck for good (Wikipedia).
Common sets run 1.5 to 10 millimeters and 5/64 to 3/8 inch. Bigger inch sets add .050 and 1/16 inch for set screws on pulleys and knobs. Flat-pack furniture, bikes and most imported gear use metric; older American machinery and many guitar and car parts use inch. If you're not sure, buy a combined set, such as the Bondhus 20399 or the Amazon Basics 26-Piece.
Hex isn't the only recess you'll meet. Star-shaped Torx screws are common on electronics, cars and appliances; the GorillaGrip pack includes a Torx folder, and our Torx screwdriver set guide covers full sets. Security screws with a pin in the center need special pin keys.
L-Keys, T-Handles And Folding Sets
Bent L-keys are the most versatile. The long arm gives reach and leverage, and the short arm fits tight spaces and lets you put more force right at the screw (Bob Vila). T-handles, such as the Bondhus 13390, are easier on the hands for repeated work and spin quickly, but they need open space above the screw. CNCCookbook compares the main T-handle brands for shop use. Folding sets stay together and fit a pocket, but the handle limits leverage, and keys that don't lock open can wobble.
Steel matters more than piece count. Cheap keys can twist or round off at the tip. Better makers state a hardness or name the steel, as Tekton does with its 8660 alloy and Bondhus with its Protanium, and offer lifetime replacement. Finishes such as black oxide and phosphate slow rust; wipe keys dry after damp work. Never slip a pipe over a key for extra leverage, which snaps tips and skins knuckles when it lets go. We found no recalls for hex keys in the Consumer Product Safety Commission's records.
How we researched this
We compared 23 current Allen wrench sets, read the makers' specifications and warranty terms for the 10 finalists, weighed published comparisons from Wirecutter, Bob Vila, ToolGuyd and CNCCookbook, analyzed owner feedback, and checked each brand against Consumer Product Safety Commission recall records. The 3D models are built from published dimensions. Updated October 19, 2026 by Ezvid Wiki Admin.
Frequently asked questions
Is an Allen wrench the same as a hex key?
Yes. Allen is a trademark from the Allen Manufacturing Company that became the common name for any hex key. Hex wrench, hex key and Allen key all mean the same tool.
Does a ball end make a hex key weaker?
Yes. The neck behind the ball is thinner and the ball grips at points, so it takes less torque. Use the ball for reach and speed and the straight end for final tightening.
Can I use a metric key on an inch screw?
No. Some sizes come close, but the loose fit rounds the socket. Match the system, or buy a set with both.
What are the most common Allen wrench sizes?
Most sets cover 1.5 to 10 millimeters and 5/64 to 3/8 inch. Furniture and bikes use mostly 3, 4, 5 and 6 millimeters.
What can I use instead of an Allen key?
A hex bit in a screwdriver or drill works, as does a hex bit socket on a ratchet. Avoid using a flat screwdriver or a Torx bit, which will damage the socket.
Who invented the Allen wrench?
Hex socket screws date to the late 1800s. William G. Allen patented a version around 1910, and his company's name stuck to the tool.
