Power Tool Accessories
Makita Mag Boost Review: A Five-Dollar Accessory That Solves a Real Problem
A tiny dual rare-earth magnet sleeve that magnetizes bits, screwdrivers, and screws. Cheap, genuinely powerful, and surprisingly universal.
Introduction
Some accessories look like gimmicks until you use them once. The Makita Mag Boost falls firmly into the category of things that sound trivial but quietly eliminate one of the most common frustrations in fastening work: screws that refuse to stay on the bit.
At around five dollars, this is one of the cheapest meaningful upgrades you can add to an impact driver, drill, or even a plain screwdriver. Here is what it does, how it fits, and who should actually pick one up.
What the Makita Mag Boost Is
The Mag Boost is a small magnetic sleeve built around two rare-earth magnets, one on each side. It is an updated, smaller version of a design Makita has offered before, and the current iteration is notably more compact and, per Makita’s claim, significantly stronger than earlier versions.
The size is genuinely striking. Sitting in the palm of a hand, it barely registers, yet the magnetic pull is strong enough to hold a bit and a screw firmly during driving.

One practical limitation worth knowing up front: it does not work on stainless steel screws, which are largely non-magnetic. For standard fasteners, though, the holding force is more than adequate.
Everyday Use Cases
The most obvious use is magnetizing a driver bit on an impact driver or drill. Slide the sleeve onto the bit, and fasteners stay attached even at awkward angles or overhead.
But the sleeve also works standalone. You can use it to magnetize a regular screwdriver, so the screw clings to the tip before you even touch the trigger of a drill. That alone makes it useful for anyone doing occasional household repairs.

It also earns its keep in tight spaces. When a screw keeps falling off in a hard-to-reach spot, the sleeve effectively acts as a third hand, holding the fastener in place while you drive it. A nice secondary trick: stick the sleeve to a metal surface with loose screws attached, and you have a temporary holder that keeps small fasteners from disappearing into the grass or gravel while you work.
How It Attaches
Installation is simple but has a small technique to it. The easiest method is to insert the bit from the back of the sleeve first, then pop the front down over the tip and adjust it into position. Going in from the back avoids the frustration of a tight Phillips tip wedging in and potentially snapping the bit.
Once seated, the sleeve grips the bit securely and will not wander during use. Removal is just the reverse of installation. If you use the sleeve on an impact driver, seat the bit fully into the chuck rather than leaving the sleeve protruding; the magnetic hold works fine with the bit fully inserted.
Bit Compatibility: Universal in Practice
Makita markets the Mag Boost as a universal fit, and it lives up to that label with an amusing caveat. Testing it across several popular bit brands, it fits all of them, but the fit on DeWalt bits is actually tighter than on Makita’s own bits, with essentially no play.

Milwaukee Shockwave bits are a slightly looser fit, though the magnetic hold remains strong and fully usable. Flex bits work as expected. The takeaway: whatever brand of bits you already own, the Mag Boost will very likely work with them, and it may even fit some brands better than the one that makes it.
Should You Buy It?
Magnetic bit holders like this are not new; plenty of companies make similar products. What sets the Mag Boost apart is the combination of size and strength. It is the smallest version of this type of accessory that is also genuinely powerful, and it does not budge once installed.

At roughly five dollars, the value proposition is hard to argue with. It saves a world of headaches for anyone who drives fasteners regularly, whether with an impact driver, a drill, or hand screwdrivers.
Conclusion
The Makita Mag Boost is a small, cheap, and effective fix for a problem every DIYer and tradesperson knows well. It works with impact drivers, drills, and screwdrivers, fits bits from multiple brands, and its dual rare-earth magnets deliver holding power that belies its size. Just remember it will not help with stainless screws. For a few dollars, it is an easy recommendation.
Product link
View more details for Makita Mag Boost
This product is mentioned in the review. Check the specifications, options, and compatibility before buying.
View more details for Makita Mag Boost