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Product highlight
90°right angle bending process
Once for molding, bending straight angles, not rebounding
High precision bite
Easy to insert screws, stable, not easy to slip, easy to remove
Ball head design
The ball head design can be used in oblique angles within 25°, which facilitates multi-directional tilt operation in narrow spaces
One body and two ends
Two ends, two functions, multiple choices, meet the needs of multiple scenes
Strong torque
Powerful torque, easily bend other hexagonal wrenches
Can be hung
Allen key set can be hung on the wall for easy storage, organization and display
Folding storage rack
Integrated jack foldable storage rack with size markings, round jacks, easy to install and remove, compact and portable, not easy to fall off
Exquisite packaging
The exquisite packaging can be used as a gift, given to father, mother, friend, colleague
High temperature quenching process
The 6th generation high-temperature quenching process has good toughness, is not easy to deform and crack, and the hardness is upgraded again, up to HRC62, and the material is more durable
Not easy to rust
Chrome vanadium alloy steel, overall heat treatment, smooth and beautiful surface, and will not easily rust after long-term use
The difference between flat head and ball head
1.The hexagonal wrench in the flat head is twisted deep -hole nuts, which is large in force, can be increased, and torque is large
2.The hexagonal wrench in the ball can be used in multiple angles, and the single torque is relatively small. It is not recommended to increase it
Set Size & Application scenarios
TheEngineer
Reviewed in the United States on March 9, 2025
I don’t encounter Torx screws very often, but when I do (on our bicycles for example), there’s really no efficient way to turn them if you don’t have a set of Torx wrenches on-hand. So this compact set from GrenPRO seems like a handy thing to have on hand if only for those occasional uses. The 9 “Star” (Torx) wrenches in this set are well-formed and – at 2.5” to 7” in length – they are long enough to provide good leverage. In fact, I prefer this “L” shape over the “T” shaped alternatives. Having the center hole in each wrench also allows them to do double duty as “standard” or “security” versions of the Torx design. Each wrench has its size etched on the side (see photo of the T50 size), but these black-on-black markings are basically unreadable on the smaller sized wrenches (e.g., the T10 and T15 sizes). Fortunately, the plastic storage rack is also labelled with sizes. The hinged design of the plastic storage rack is similar to that used in many similar sets, but here the durability is perhaps a little lacking as part of it arrived broken off (see photo). This suggests to me that the rack may not hold up well to normal wear and tear, especially if it gets dropped at some time in the future.
Johnathan
Reviewed in the United States on March 20, 2025
Great quality Torx wrench set! The long-arm design makes it easy to reach tight spots, and the tamper-proof feature is a lifesaver for security screws. The durable construction holds up well even under heavy use. A must-have for any toolbox!
WanderingWanderer
Reviewed in the United States on March 10, 2025
They come in half mm increments which is really useful. They also have a rounded hex-"ball" on one end, meaning the wrench can operate when slightly at an angle with the hole its screwing. I have another set that is not "balled" or tapered on one end, so it HAS to be inserted completely at 90 degrees to the screw. The ball allows maybe 10-15 degrees of wiggle room but will still engage/turn the screw. This is really useful when working in tight spaces and its a huge feature that I didn't even know existed until I tried this set.
Professor62
Reviewed in the United States on February 9, 2025
GRENPRO Allen Wrenches Set, Hex Keys SetWhat’s not to like? This is a high-quality, long-arm, Metric set of hex keys, also known as Allen wrenches. (“Allan” is NOT a correct spelling for this tool.) There are 13 wrenches made of chrome-vanadium (CR-V) steel in this set. CR-V is a proven and highly respected material for tools that require both strength and durability. It has a Rockwell hardness rating of up to HRC 62 (HRC 60 is considered very hard.) Vanadium provides the strength, while chrome offers formidable corrosion resistance. (Just don’t subject the wrenches to temperatures over 212 degrees F or else the finish will begin to peel off, thereby leading to corrosion.) The long-arm design allows for greater leverage and torque, while the ball-end design helps you with tighter spaces and more difficult angles. These wrenches are thus made extremely well. They have been machined very competently as well: they are very comfortable in the hand, have no imperfections to disturb that comfort, and just simply feel great to use. Given the quality of the steel as well as the machining, they are certainly a very good value. I highly recommend this set.
Ben Tanko
Reviewed in the United States on February 8, 2025
I have never seen an L shaped Torx wrench before, and here I am, quite pleased with this set. It's not enough of an issue to remove a star, but the size, which is stamped into each tool, is not a different color. Somewhere along the way, I noticed a guy from Florida that uses spray paint and then rubs the tool down after a mild application of WD-40 and the stamped portion is then quite easy to see. :-). I guess I have a reason to give that trick a shot!. If this manufacturer actually took the time to produce their tools in order to keep people like me quiet, their cost, as well as ours would go up and then I'd still be complaining :-) For me, the issue will be a learning experience and it's nowhere near enough to say to avoid ordering yourself some of these tools. I think they are a great value and will definitely come in handy.I am happy with my order and I hope this was helpful. ✔️ Thanks!
Jason Gargo
Reviewed in the United States on February 27, 2025
In the interest of full disclosure, as a trusted and unbiased Amazon reviewer, I was able to request this product free of charge, except for having to pay tax on the fair market value of the item.These are good hex keys, although they are on the pricier side. I did some searches and I see some folks claiming to be professional mechanics that swear by them.They are packed in a nice fold out case which makes it easier to remove the wrenches. All of the wrenches have a round end on one side which permits some angular use. Even the 1.27mm wrench has this feature which is somewhat remarkable.The sizes seem a bit odd to me 1.27mm, 1.5 through 6mm in 0.5 mm increments, and then 8 and 10mm. What happened to 7 and 9mm?Using a caliper, I measured a few of the keys:1.27 mm - measures 1.2mm10 mm - measures 9.93 mm4 mm - measures 3.92 mmSo I would say these are pretty accurate.The finish of these are shinier than most - possibly some kind of protective or hardening coating ? There are a few nicks on some of the larger keys.The 1.27mm through 3.5 mm keys have completely flat ends on the non-rounded side. The others have chamfered ends.The keys are very straight even the smaller ones.The less than perfect rating is based on cost as I believe these are quite expensive, but the keys seem to work well. I can't be sure if they have less flex than the other keys that I have.
Customer
Reviewed in the United States on April 22, 2025
Good quality
frankp93
Reviewed in the United States on April 18, 2025
Faucet handles, office chairs, guitar truss rods, band saw guide blocks, belt sanders, drill press – the list seems endless for reasons you need a set of metric Allen wrenches. Sure, I still come across plenty of inch/imperial sizes, but it feels like the tide has clearly turned.These are solid, with good mass. I like to use plastic handles or small vise-grips for leverage, especially for sound hole truss rod adjustments where the long end of the wrench is inserted and I’m turning the short end.A little rub of candle wax keeps them smooth for easy insertion into oxidized rods and bolts.
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