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Internet # 334336376

Model # 3450-20

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M12 12V Lithium-Ion Subcompact Brushless Cordless 1/4 in. Hex Impact Driver (Tool-Only)

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$129.00
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  • 4.3 in. drill design offers max access and control in tight areas
  • Ultra portable and lightweight at 1.7 lbs with battery
  • Power tool set option that delivers power with 1100 in-lbs torque
  • View More Details

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Product Details

About This Product

The MILWAUKEE® M12™ Subcompact Brushless ¼" Hex Impact Driver is the most compact and lightest weight cordless impact driver. It measures only 4.3" in length and 2.0" in width, allowing for the best access in tight spaces and weighs only 1.7 pounds with battery.  This impact driver delivers unmatched portability and maneuverability for hard-to-reach fasteners. The brushless motor technology provides faster driving speeds with 1,100 in-lbs. of torque and up to 3,000 RPM to increase productivity. An internal metal gearcase delivers robust strength and durability. MILWAUKEE® REDLINK™ Intelligence communicates with the M12™ REDLITHIUM™ batteries (sold separately) to provide optimal performance for the tools. The M12™ Subcompact Brushless ¼" Hex Impact Driver is part of the M12™ system and is fully compatible with over 150+ solutions.

Highlights

  • Subcompact Design: Best access in tight spaces at 4.3” long and 2.0” wide
  • Lightweight and Portable: only 1.7 lbs. with battery pack for overhead work
  • Internal Metal Gearcase for increased durability
  • Brushless Motor: Up to 1100 in-lbs. of torque
  • Fast driving: 4100 Impacts per minute and 3000 Rotations per minute
  • REDLINK Intelligence™: Advanced overload protection defends against heavy duty applications and monitors the temperature to prevent damage and ensure maximum tool & battery life
  • REDLITHIUM™ Battery: Superior pack construction, electronics, and performance deliver more work per charge and more work over pack life than any battery on the market
  • 5 year tool warranty
  • Includes 3450-20 M12 Subcompact Brushless 1/4" Hex Impact Driver with belt clip. Battery and Charger sold separately
  • Compatible with the Milwaukee® Accessory Bit holder 49-16-3697
  • On tool battery fuel gauge
  • Part of the M12™ System, featuring over 150+ tools
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 334336376

Model # 3450-20

Additional Resources

Shop All Milwaukee

Specifications

Dimensions: H 6.8 in, W 2.0 in, D 4.3 in

Dimensions

Product Depth (in.)

4.3 in

Product Height (in.)

6.8 in

Product Width (in.)

2.0 in

Details

Battery Amp Hours

No Battery

Battery Power Type

Lithium Ion

Battery Voltage (V)

12V

Battery/Charger

Tool Only

Charger Included

Charger Not Included

Color Family

Red

Cordless Tool Type

Impact Driver

Cordless/Corded

Cordless

Drive Size

1/4 In. Hex

Included

Tool Only

Maximum Speed (RPM)

3000 RPM

Motor Type

Brushless

Number of Total Batteries Included

0

Power Tool Features

Sub-Compact, Variable Speed

Product Weight (lb.)

1.7 lb

Returnable

90-Day

Tools Product Type

Power Tool

Torque (In-Lbs)

1100

Warranty / Certifications

Manufacturer Warranty

5 Year Limited Warranty

Questions & Answers

Does this come with a battery?
ByOct 12, 2026
1 Answer | 
Answer This Question

This specific kit is "tool-only" meaning it does not include a battery or charger.

By|Oct 13, 2026


    Does this come with a battery?
    ByOct 12, 2026
    1 Answer | 
    Answer This Question

    This specific kit is "tool-only" meaning it does not include a battery or charger.

    By|Oct 13, 2026


      Does this come with a battery?
      ByOct 12, 2026
      1 Answer | 
      Answer This Question

      This specific kit is "tool-only" meaning it does not include a battery or charger.

      By|Oct 13, 2026


        Does this come with a battery?
        ByOct 12, 2026
        1 Answer | 
        Answer This Question

        This specific kit is "tool-only" meaning it does not include a battery or charger.

        By|Oct 13, 2026


          Does this come with a battery?
          ByOct 12, 2026
          1 Answer | 
          Answer This Question

          This specific kit is "tool-only" meaning it does not include a battery or charger.

          By|Oct 13, 2026


            Does this come with a battery?
            ByOct 12, 2026
            1 Answer | 
            Answer This Question

            This specific kit is "tool-only" meaning it does not include a battery or charger.

            By|Oct 13, 2026


              Does this come with a battery?
              ByOct 12, 2026
              1 Answer | 
              Answer This Question

              This specific kit is "tool-only" meaning it does not include a battery or charger.

              By|Oct 13, 2026


                Does this have one key feature?
                ByOct 5, 2026
                1 Answer | 
                Answer This Question

                No, the M12 FUEL™ 1/4" Hex Impact Driver (3453-20), including the package with the M12™ REDLITHIUM™ HIGH OUTPUT™ CP2.5 Battery (48-11-2425), does not have ONE-KEY™ functionality. ​

                By|Oct 6, 2026


                  Viewing 1-8 of 68

                  Customer Reviews

                  4.8 out of 5

                  • 4.8 out of 1,144 reviews
                  • 89% recommend this product
                  Filter by:
                  Showing 1-10 of 1,144 reviews
                  Lightweight, small and powerful. I’ve been in the trades for over 35 years and this is by far my favorite and most used tool.
                  by
                  I bought this M12 impact driver (3453-20) out of necessity when my last one stopped working after over 10years of hardworking punishment in the hvac trade. Too my surprise the model number is the same as my original one which made the purchase a simple decision. I love the small size and big power, it's comfortable, works in freezing wintwr temperatures and hot summer weather. I really have no complaints. I hope this new one lasts as long as my previous one.
                  by
                  I'm very happy with my purchase. The included 2.5 battery is strong enough for the form factor. I got it on sale for $100. Money well spent
                  by
                  This drill was exactly what I was looking for. It is very small in size. It is able to use the smallest M12 battery. The quality of the materials is outstanding and it seems to perform flawlessly. It has a lot of power for being such a small driver. I would highly recommend getting this for any craftsman or people doing smaller jobs.
                  by
                  This compact m12 1/4” impact is quickly becoming one of my favorite m12 tools in my collection. It has impressive power for its small size and when coupled with a 1/4” hex to square adapter it is perfect for automotive applications. I would definitely purchase this one again.
                  by
                  Fantastic small impact, has loads of power for how small the form factor is. The trigger is pretty responsive so low torque applications on speed 1 is a breeze. I have not noticed a power difference between the 5 amp and 2.5 amp hour battery, so you can keep the weight down and just use the 2.0 or 2.5 battery on it and will do just fine. Attached picture reference of size between my ancient 18v drill and how small the 12v impact is. For a home owner/diyer this is perfect.
                  by
                  Just recently got this tool it’s been great so far it feels solid. It works like it should and made the job way easier, definitely happy with it and would buy again.
                  by
                  The Milwaukee M12 Hex Impact Driver is a compact powerhouse perfect for everyday jobs. Despite its small size, it delivers impressive torque, fast driving speed, and excellent control. The lightweight design makes it ideal for tight spaces and overhead work. Battery life is solid, and the tool feels durable with Milwaukee’s signature build quality. For DIY projects and pro use alike, it’s a reliable, versatile impact driver that punches above its size
                  by
                  This drill is excellent! It is so powerful and good to use while working on your car or little things around the house. It has different settings for different needs. Only had it about a month but so far so good. Great product I like just about everything about it.
                  by
                  This customer chose to rate the product and not provide text.
                  by
                  1 found this review helpful
                  Showing 1-10 of 1,144 reviews

                  Compare Key Features

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                  Product Snapshot

                  Ideal for professionals or homeowners seeking a compact and powerful impact driver, the Milwaukee M12 delivers 1, 100 in-lbs. of torque and brushless motor efficiency for tackling demanding tasks.
                  Ideal for professionals who need power and portability, the M18 Compact Brushless Impact Driver delivers 1, 700 in-lbs of torque in a compact size.
                  Ideal for customers who want the fastest, most compact impact driver, ensuring maximum workspace visibility.
                  Ideal for professionals seeking quiet operation, powerful performance, and reduced vibration for enhanced productivity.

                  Torque Output

                  1100 in-lbs
                  1, 700 in-lbs
                  1500 in-lbs.
                  1000 inch-pounds

                  Battery Capacity

                  No Battery

                  Power Source Cordless

                  Brushless Motor

                  Speed Settings

                  3
                  4-Mode Drive Control
                  3-mode drive control