

🔧 Unlock precision and power with every turn — don’t settle for less!
The DYNOFIT 6 Spline Tuner Lug Nuts Key is a premium alloy steel socket tool designed specifically for 6-point spline lug nuts with thread sizes 12x1.25 and 12x1.5. Featuring dual hex compatibility (19mm and 21mm), it offers versatile wrench use while its cold forged CR-V steel construction and black plating provide superior corrosion resistance and durability, validated by a 72-hour salt spray test. Ideal for professionals and enthusiasts seeking reliable, long-lasting wheel maintenance tools.









| ASIN | B07GV73XC5 |
| Best Sellers Rank | #6,270 in Automotive ( See Top 100 in Automotive ) #24 in Wheel & Tire Lug Nuts |
| Brand | dynofit |
| Color | Black |
| Compatible Groove Diameter | 19 Millimeters |
| Customer Reviews | 4.5 out of 5 stars 3,298 Reviews |
| Drive Style | Spline |
| Exterior Finish | Passivated |
| Fastener Type | Wheel |
| Finish Types | Black Plated |
| Grade Rating | Class 10.9 |
| Inside Thread Size | M12 X 1.5 |
| Item Diameter | 18 Millimeters |
| Item Weight | 0.13 Kilograms |
| Manufacturer | Fastfree |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Metal Type | CR-V Steel |
| Number of Pieces | 1 |
| Screw Head Style | Hex |
| Size Name | 6 Spline with Hex 3/4" and 13/16" |
| Thread Coverage | Fully Threaded |
| Thread Size | M12 x 1.5 |
| Thread Style | Right Hand |
| UPC | 661748968306 |
R**J
Good
Good product did the job
D**.
Great product!
Shipping was less than 24 hrs!! Great set , nice quality, work great!!! Go ahead and buy this you won’t be disappointed!!! A+++
B**R
GREAT
FITS PERFECT AND GOOD PRICE FAST SHIPPING
A**R
6 point lug nut key
Done as should
N**O
Does its job!
Works A little difficult to get the lugs loose from the socket
T**G
Truck size
Perfect for truck size 7 spline lugs
M**E
This is what every garage needs. Perfect variety and great durability.
Build quality is durable and the sizes all fit perfectly. I’m a high school auto shop teacher and use these all the time! Students are constantly buying or bringing in projects where the previous owner put on custom lug nuts and now we can’t change out the tires or work on the brakes! These are the go-to for those instances. Fair warning- some of these are very similar but not the same. If you use one that fits but isn’t the correct pattern you will get it stuck on there and it will not be good. Make sure you double check with their diagram that’s stickered inside of the carry case before you go at it. Overall this is just perfect for what we need. I find myself sending the students off with the socket that fits their lug nuts and tell them to always keep it in the glove box for when they get a flat tire in the middle of nowhere. I keep buying them as a result of handing them out but what are ya gonna do? It’s kind of a safety thing- at least that’s how I justify it. Good luck with your projects!
P**S
Lug nut keykit
This set came through well packaged. Unfortunately I returned it because the keys did not match my lug nut lock.
Trustpilot
2 weeks ago
3 weeks ago