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Simon tools

Simon Tools Magnetic Bit Holder for Milwaukee M12 Fuel Surge Impact Driver and Drill - Holds 6 Bits

  • Based on 1,120 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Sep 1
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Size: Fits Model No 34xx (Gen3) ONLY!


Color: Red Left Side


Features

  • Designed for M12 Tailored to perfectly fit with the Milwaukee M12 Gen3 impact driver 3453-20 and drill 3404-20. Check the other variation for Gen2 compatibility. Not compatible with the M12 Subcompact.
  • Secure Magnetic Hold Powerful neodymium magnets ensure bits snap securely and satisfyingly into the bit holder, eliminating the frustrations and struggles of friction-based holders.
  • Built to Last Crafted from injection molded PP material, ensuring your holder is as least as tough and reliable as your Milwaukee impact driver.
  • Extra Functionality The magnetic side temporarily holds screws, freeing you from juggling them in your mouth, pockets, or tool belt while working. Now with 30% larger magnets for an even stronger hold!
  • No-Nonsense Install The Simon Tools Milwaukee bit holder mounts securely to your drill with the included screwno adhesives needed. Pre-applied threadlock ensures it stays firmly in place.

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: Injection molded PP plastic


Number of Pieces: 1


Drive System: Hex


Unit Count: 1 Count


Brand Name: Simon tools


Model Number: ST-Red-Gen3-L


Unit Count: 1 Count


Number of Packs: 1


Manufacturer: Sivertsen Creations


Included Components: Bit holder, installation screw


Manufacturer Part Number: ST-Red-Gen3-L


Drive System: Hex


Drive End Style: Magnetic Tip


Drive Bit Shank Style: hex shank


Bit Compatibilities: drill, impact driver


Number of Pieces: 1


Material Type: Injection molded PP plastic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 1

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
    • Works great
Size: Fits Model No 34xx (Gen3) ONLY! Color: Black Right Side
Review Image by joseph bice
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
    • Great product
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
    • Great addition to my impact.
Size: Fits Model No 34xx (Gen3) ONLY! Color: Red Right Side
Review Image by Derek
Review Image by Derek
Review Image by Derek
This fits and looks like it belongs on my impact. It's perfect to hold the attachments I use most frequently without having to go back to the box every time. The screw holder magnet is a little bit too weak to be a reliable holding spot for my screws though, unfortunately, unless they are tiny and youre not vibrating it too much, which I tend to. Also, the glue holding in the magnets is not that great.. I had one magnet (so far) pop out when impacting, and it is not that easy to get back in its hole because the magnets around it pull it sideways. I have seen that on other reviews as well, maybe the manufacturer could take that into account and improve it. I would take it down a star for that, but it wasnt THAT big of a hassle, and I still really like it and overall feel it's 5 stars. Besides that, they are strong magnets and can hold a 3/8 drive adaptor with a socket on it. Handy piece of equipment. Be sure you don't let rust fall in there though because it's hard to get out and makes the magnets not stick as well. ... show more
Reviewed in the United States on May 30, 2024 by Derek
    • 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
    • If you’re using M12 tools, this is a must-have accessory.
Size: Fits Model No 25xx (Gen2) ONLY! Color: Black Left Side
This magnetic bit holder has quickly become one of my go-to accessories for my Milwaukee M12 tools. The magnet is strong enough to hold bits securely during heavy-duty tasks, but not so strong that swapping bits is a hassle. It feels durable and well-made, with a solid metal construction that stands up to frequent use. Using it has made my work much faster — no more dropped or lost screws, and the holder keeps everything right where I need it. It’s compact, easy to handle, and fits perfectly with the M12 drivers. ... show more
Reviewed in the United States on October 5, 2025 by Ryan
    • Excelent.
Size: Fits Model No 34xx (Gen3) ONLY! Color: Red Right Side
Works very very well. Strong magnets for both bits and screw pad
Reviewed in the United States on August 4, 2026 by Jeremy Gonzalez
    • Upgrade your drill!
Size: Fits Model No 25xx (Gen2) ONLY! Color: Red Right Side
Review Image by steve fuller
Review Image by steve fuller
Review Image by steve fuller
Review Image by steve fuller
I definitely consider this an upgrade to my impact as well as my hammer drill. I’ve got a combo of this unit on one side then the magnetic bit holder (also from Simon tools) on the other side. Super useful combination, six bits should cover most things I encounter on the one side, then screws and drill bits on the other side (see pic). The plastic construction on the unit is pretty tough with a rubberized magnetic section (magnet is little weak). The rubber magnetic patch will hold a number of loose screws as well. The magnets in the slots are very strong, no worries about tips coming out. I really love not having to grab a box of tips when I need my drill for something. I keep a couple of adapters, Phillips, and a torx bit in there.. maybe a slotted. It’s become one of those tools you can’t imagine not having. Just an extension of the drill. I read where someone wrote that the drill becomes top heavy. I haven’t had that issue myself and I thought I would. The drills having remained fairly balanced. Full disclosure I am using the larger bottom batteries, 3.0 and higher I believe.. that helps balance the drill. I’m a new fan of Simon Tools! ... show more
Reviewed in the United States on February 13, 2025 by steve fuller

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