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🔩 Fix it right, fix it tight — precision that professionals trust!
The iFixit Aluminum Precision Bit 4mm Driver is a premium tool designed for electronics repair, featuring a tough aluminum handle with an ergonomic knurled grip, a magnetic bit holder for secure screw handling, and a smooth swivel cap for continuous turning. Measuring 4.5 inches in length and compatible with 4mm bits, it combines durability and precision, all backed by a lifetime warranty.



















| ASIN | B09SS543NN |
| Best Sellers Rank | #30,159 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #122 in Screwdrivers |
| Bit Compatibilities | 4mm |
| Brand Name | iFixit |
| Customer Reviews | 4.8 4.8 out of 5 stars (247) |
| Drive Bit Shank Style | Straight |
| Drive System | Torx |
| Finish Types | Unfinished |
| Item Length | 4.5 Inches |
| Item Weight | 0.07 Pounds |
| Manufacturer | iFixit |
| Manufacturer Warranty Description | Lifetime Guarantee |
| Material Type | Aluminum |
| Model Number | 145419-1 |
| Number of Pieces | 1 |
O**G
Favorite driver for swappable heads
These quickly became my favorite screwdriver. It feels a lot better than the generic ones I have had in the past. I lost the one that came with my Manta repair kit, so I purchased this one. In the grand tradition the missing one reappeared instantly upon receipt of the new one. I love how well it holds the bits. Feels good in the hand and the pivot on the end is smooth. I have probably dropped it 100 times and it does not seem any worse for the wear. Good quality with a fair price.
S**G
Perfect as replacement 4 mm driver for tiny screw driver bits. Really well made.
Well tooled and made of aluminum with knurled grip and swivel top. Perfect for 3.7-3.8 mm diameter miniature screw driver bits that require a 4 mm driver. Purchased this in duplicate, as a replacement for the poorly made 4 mm drivers that generally come with the tiny screw driver bit sets used in a multitude of electronics like cell phones, smart watches, standard watches and small electronics. Can’t fault the engineering quality or design of this 4 mm quality driver.
A**H
Just great
Very well made. Nice to hold. Solid aluminum and just a pleasure to use. A 4mm driver for precision bits that is precise and done correctly. Good magnet. This is my first encounter with IFIXIT - and it sure will help me fix whatever the ‘it’ is. You have to love it when a simple tool makes you happy. Not sure what it says about me but hey, feeling good is a good thing.
R**H
Feels like a quality tool. Exceeds expectations
This is a great tool. I especially like the thickness, it's comfortable to grip, turn, and use. The blue portion spins freely and works well to apply pressure with your palm, and turn freely. I'm very happy with this product. It has met and exceeded my expectations. Thanks for the great product.
J**E
A MUST-HAVE for field techs. Solid and smooth handling.
I will say up front I have bought three of these. Not because they break but because I have used them so much I might lose one but I still have two floating around somewhere. I'm probably going to buy a fourth or fifth one. These things are solid, they have just the perfect amount of weight and heft, and the bearings at the tip of the handle make for easy rotation with both and two-handed rotations. If you haven't used one yet you don't know what you're missing. This thing works extremely well taking apart 6 to 10 laptops a day. If you get I fix it brand bits with it, even the smallest kit has just about everything you will need that goes with the screwdriver. At $10, I would definitely say this thing is worth it!
R**G
High Quality
This is a high quality driver. Perfect replacement for plastic drivers. Perfect size and weight and good price.
T**Y
An Excellent, Smooth Operating Handle for 4mm Bits
Rotates smoothly in hand and palm. Bits very well held by the magnetic chuck. Reasonable price for such a well-made handle for bits already on-hand or for use as a second handle to an existing set.
N**S
Almost perfect
I bought this as an upgrade from my Wiha all plastic driver. Mostly for pocket knife maintenance. I do like the grippy knurling on the handle, the 4mm driver is almost perfect but there is still a small amount of play with the bit installed. The all aluminum bit housing is strong with a strong magnet. It very well manufactured and feels like a quality tool. IMO Probably the best your going to find until moving up to full fixed bit sets. Highly recommended
A**D
Ifixit hex bit driver
Good build.
J**S
Eficiente y hermosa pieza de calidad
Precisa, eficiente y hermosa pieza de diseño. No es barata pero un gusto trabajar con ella.
M**L
Parece bien construido y funciona muy bien
Está perfecto para reparar laptops y PC, se siente fuerte y con buen agarre. La única razón por la que no le doy 5 estrellas es por que me gustaría que fuese un poco más robusto ya que tengo las manos grandes pero eso ya es cuestión personal.
Trustpilot
4 days ago
1 month ago