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Simon Tools Magnetic M12 Bit Holder for Milwaukee M12 Fuel Impact Driver

  • Based on 1,131 reviews
Condition: New
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Availability: In Stock.
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Arrives Friday, Oct 23
Order within 10 hours and 43 minutes
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Size: Fits Model No 34xx (Gen3) ONLY!


Color: Red Right Side


Features

  • Designed for M12 Gen3: Fits the Milwaukee M12 Fuel Gen3 impact driver (3453-20) and drill (3404-20). If you have the Gen2 or M12 Surge, check our other variation. Not compatible with the M12 Subcompact.
  • Secure Magnetic Hold: N52-grade neodymium magnets lock each bit in place with a satisfying snap, so you get none of the dropped bits and fumbling that come with friction-based holders.
  • Built to Last: Like your Milwaukee drill, this bit holder is injection molded out of a durable plastic, making it at least as tough as the tool it rides on. Holds up to 6 bits without getting in your grip.
  • Extra Functionality: Free yourself from juggling screws in your mouth, pockets, or tool belt mid-job by storing them on the rubberized magnetic side. Now with 30% larger magnets for an even stronger hold!
  • No-Fuss Installation: Mounts with the included upgraded screw, no adhesives needed. Pre-applied threadlock keeps it locked in place. A practical gift for any Milwaukee M12 owner, contractor, or serious DIYer.
  • Buy with Confidence: Backed by a 1-Year Warranty for added peace of mind. If an issue arises, we're ready to help.

Description

Secure your drill bit holder on the impact driver or drill in no time. Installation screw with threadlock included. Forget about losing your Milwaukee bits, and focus on the project at hand. Effortlessly snaps in place, no friction to wrestle. The magnetic side keep your next screw primed and ready to use. Oct 2022 – Initial Launch: First 3D printed production version. May 2023 – Injection Molding: Improved strength and production scalability. Aug 2023 – Black Option Added: Introduced after customer requests. Jul 2024 – Magnet Retention Update: Tighter magnet pocket to prevent loosening. Sep 2024 – Left-Side Version: Dedicated left configuration added. Dec 2024 – Larger Side-Magnets: Improved screw holding strength. Apr 2025 – Deeper Magnet Pocket: Increased retention and durability. May 2025 – Material Update (PP-EPDM): Enhanced impact resistance. Jun 2025 – Hardened Screw: Reduced risk of breakage. 2026 and Beyond: Evaluate feedback and identify improvements.

Brand: Simon tools


Material: Hardened screw with threadlocker, Injection molded PP plastic, N52 Neodymium magnets


Number of Pieces: 1


Item Highlight: Milwaukee Bit Holder, Holds 6 Bits, Fits 3453-20, M12 Accessories, Fits only Gen 3 drivers


Number of Items: 1


Brand Name: Simon tools


Model Number: ST-M12-Gen3


Item Highlight: Milwaukee Bit Holder, Holds 6 Bits, Fits 3453-20, M12 Accessories, Fits only Gen 3 drivers


Number of Items: 1


Unit Count: 1 Count


Number of Packs: 1


Manufacturer: Sivertsen Creations


Included Components: Bit holder, installation screw


Manufacturer Part Number: ST-M12-Gen3


Drive Bit Shank Style: Low profile fit


Bit Compatibilities: drill, impact driver


Number of Pieces: 1


Material Type: Hardened screw with threadlocker, Injection molded PP plastic, N52 Neodymium magnets


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Better Than the Milwaukee Option
Size: Fits Model No 25xx (Gen2) ONLY! Color: Red Right Side
Perfect fit and great retention. It offers better versatility than the OEM version from Milwaukee. I recommend this to anyone who wants increased utility at a reasonable price.
Reviewed in the United States on July 26, 2026 by 24bics

  • Great product
Size: Fits Model No 25xx (Gen2) ONLY! Color: Black Right Side
Absolutely love this bit holder. The magnets are very strong and I have never had any issues with the bits falling out. After a year of daily use the screw that holds it on the impact has come loose afew times but it’s not a big problem. Overall this is a great purchase, especially for electricians.
Reviewed in the United States on July 22, 2026 by Mack

  • Works great
Size: Fits Model No 34xx (Gen3) ONLY! Color: Black Right Side
I like it. It dose make the drill a bit wider but the magnets are good so it doesn't drop the bits at all and its handy to just be able to grab the drill and go
Reviewed in the United States on July 15, 2026 by joseph bice

  • Life-Changing Tool That Saves So Much Time!
Size: Fits Model No 34xx (Gen3) ONLY! Color: Red Right Side
This is a live changing, saving you a lot of time. I Love it.
Reviewed in the United States on August 24, 2026 by elieser

  • Game Changer - Recommend for Mechanics
Size: Fits Model No 34xx (Gen3) ONLY! Color: Black Right Side
It's such a simple upgrade that really increases work efficiency. Simple, quick, psinless install. Veey good tool fit, and not too clunky. As a mechanic, I primarily use 8,10,12mm nut drivers, & it is tedious keeping track of them in the middle of all the other sockets, nuts, & bolts. Having them right there has made a world of difference wirh splash shields, bumpers, under hood, & interior work as those task often use 2 or all 3 of those sizes. The downsides & why it got 4 not 5. The side magnet is basically useless for holding nuts & bolts. Impact rattle them off. Same with the bits as well, only sometimes unfortunately. I've had to fish some of my bits out of an engine bay a few times. I think if the magnets were stronger, it would be perfect. ... show more
Reviewed in the United States on April 3, 2024 by Ashley

  • Fits, the M12 perfectly
Size: Fits Model No 34xx (Gen3) ONLY! Color: Black Right Side
I’ve only used this so far for one day so far so good. The magnets have no problem holding the bits seems to be good quality. Hopefully it holds up.
Reviewed in the United States on August 31, 2026 by Tony

  • Wrong screw and hole to small
Size: Fits Model No 25xx (Gen2) ONLY! Color: Black Left Side
They gave me a tiny thin screw that wasn’t compatible with my m12 Fuel, only bought becuz the reviews were solid and didn’t see this issue until I received the item. Tried a bigger screw to realize the hole made in the holder was tiny and sized for the tiny screw not a compatible one, was gunna drill a hole and make it bigger but then I’ll need to get a bigger longer screw, basically this item is trash ... show more
Reviewed in the United States on August 25, 2026 by Brandon

  • Handy
Size: Fits Model No 34xx (Gen3) ONLY! Color: Black Right Side
Keeps all my go bits attached to my driver , excellent product
Reviewed in the United States on August 31, 2026 by Shon Johnson

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