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Internet # 322728302

Model # 49-66-4582

Store SKU # 1008632183

SHOCKWAVE Impact Duty 1/4 in. x 6 in. Alloy Steel Magnetic Nut Driver (1-Pack)

  • Impact Duty Magnet prevents the magnet from loosening over time
  • Magnetic nut driver securely holds screws during set-up
  • Optimized SHOCK ZONE™ absorbs peak torque & prevents bit breakage
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Product Details

About This Product

The MILWAUKEE® SHOCKWAVE Impact Duty™ Magnetic Nut Drivers are engineered with the Most Durable Magnet to stand up to heavy duty applications throughout the life of the nut driver. The magnetic nut driver securely holds screws during application set-up providing unyielding bit engagement. Made from heat treated CUSTOM ALLOY76™ steel to control hardness for extended bit life. The optimized SHOCK ZONE™ absorbs peak torque and prevents bit breakage. Milwaukee magnetic nut drivers feature a chamfered edge for maximum screw-head engagement while the improved hex geometry allows for the best fit and reduced stripping during use. The nut drivers also feature color-coded bands that aid with selecting the right diameter. Designed for use with impact drivers and drill drivers.


  • Impact Duty Magnet prevents magnet loosening over time
  • Magnetic nut driver holds screws securely during application set-up
  • Optimized SHOCK ZONE™ absorbs peak torque and prevents breakage
  • Color-coded bands aid with selecting the right size nut driver
  • CUSTOM ALLOY76™ Steel is engineered to extend bit life
  • 6" Magnetic nut driver allows for extended reach and tight-access applications
  • Chamfered edge for maximum screw-head engagement
  • Improved hex geometry for best fit and reduced stripping
  • Available in lengths: insert, 1-7/8”, 2-9/16”, 6”
  • Designed for heavy-duty impact applications
  • Designed for use with Impact Drivers and Drill Drivers
  • Includes: 1 SHOCKWAVE impact-duty 1/4 in. x 6 in. magnetic nut driver
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Product Information

Internet # 322728302

Model # 49-66-4582

Store SKU # 1008632183

Additional Resources

Shop All Milwaukee



Bit Diameter

1/4 in

Bit Length (in.)

6 in

Shank Diameter

1/4 in

Tip Size

1/4 in.


Bit Material

Alloy Steel

Drill Bit Type


Drill Bit Type(s) Included

Nut Driver

Drive Style

Nut Setter

Impact Driver Capability

Impact Rated



Material Application

Aluminum, Duct/Sheet Metal, Stainless Steel, Wood

Number of Pieces

1 Piece

Number of Pieces




Shank Style


Tools Product Type

Power Tool

Questions & Answers

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Customer Reviews

4.7 out of 5

  • 4.7 out of 39 reviews
  • 100% recommend this product
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Showing 1-10 of 39 reviews
We use these EVERY DAY to drive our fastners for our seamless gutter installs. It's been tough over the years finding good extensions with a great magnet. We finally got em. Love em.
  • Verified Purchase
High quality bit holder
The Milwaukee shockwave ¼ inch bit holder is a welcome addition to my toolbox. If you need extra length to reach a fastener that is buried deeper than the standard bit holder this is your tool. The product is a quality Milwaukee made tool. The extra length does make me pause thinking it could get “twisted” by putting too much into a long bit holder. But Milwaukee has provided a “shock zone” to address that concern. So far, I haven’t had to use on any stubborn fasteners so I cannot speak to the effectiveness of the shock zone in extreme situations. So far there has not been any issue. The magnetic holder works as expected and overall, I am very happy with the bit holder.
  • Recommended
A Must Have Accessory
The 2" Version of this tool quickly proved to be my favorite tool accessory. I had to get this 6" Version #49-66-4582. These 1/4" Hex Magnetic Nut Drivers are beyond wonderful. The tips don't fall out, I have no fear of breaking the shaft, and the shaft is skinny and can go places a thicker shaft can't. Also there are no moving parts. My older magnetic nut drivers have sliding sleeves to cover/help hold the fastener. Those sliding sleeves just get in the way, make the shaft effectively thicker, and don't work for me. I have a number of power screwdrivers and impact drivers and I consider this a must-have accessory along with the 2" version. There are several subtle details that make this a superior nut driver. The rare earth magnet is strong and doesn't drop bits. The business end socket has the same relieved (anti-rounding) corners as the Milwaukee Mechanic's Socket Sets. There is an engineered "Shock Zone" optimized to absorb peak torque without breakage. The whole thing is made from a custom alloy optimizing impact duty service life. A Cool Tool. 5 Stars.
  • Recommended
A great choice
The Milwaukee Shockwave impact duty 1/4-inch X 6-inch is a handy tool to have in your tool collection and they are color banded according to the size. This one's band is RED. The 1/4-inch drive socket has a strong impact duty magnet to hold the fastener until it's driven home. The 6-inch length makes it great for use in hard-to-reach places, as you can see in one of my pictures, and the shaft locks securely in your impact driver. The shaft has an Optimized Shock Zone made from Custom Alloy76, a trademark of Milwaukee. This tool will see lots of use in my shop.
  • Recommended
Everything was good and arrived in a decent time!
  • Verified Purchase
If you have nuts and need it buy it.
  • Verified Purchase
  • Verified Purchase
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  • Verified Purchase
Showing 1-10 of 39 reviews