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KLEIN TOOLS

Klein Tools 33801 Impact Driver Bit Set with Magnetic Nut Drivers, ProFlex S2 Steel Phillips, Slotted, Square, TORX Bits with Case, MODBox Compatible, 40-Piece

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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, May 9
Order within 22 hours and 22 minutes
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Size: 40-Piece Driver Bits with Nut Drivers


Features

  • ENERGY ABSORBING TECHNOLOGY: Helps extend the life of the impact driver bit with the torsional recoil system feature
  • IMPACT-RATED: Steel bits are S2 impact-rated and built for heavy-duty applications
  • PHILLIPS AND SQUARE BITS: Easily access hard to reach fasteners with the 3.5-Inch #2 Phillips and #2 Square bits
  • STORAGE CASE: Included case is compact, can stack to cases with similar designs and is compatible with Klein's MODbox
  • BIT EXTENSION: Powerful magnet on the 3-Inch bit extension secures bits in place
  • 40 BIT SET: Includes a variety of Phillips, Slotted, Square and TORX bits
  • MAGNETIC NUT DRIVERS: 1/4-Inch and 5/16-Inch magnetic power nut drivers facilitates work on bolt applications

Description

Klein Tools designed a set of ProFlex Torsion Zone Impact Driver Bits for the professional tradesman and do-it-yourself enthusiasts. All of the bits are made of high-impact rated S2 steel and feature an optimized torsion zone that absorbs impact forces to increase the lifetime of the bit. The 3-Inch bit holder and 1/4-Inch and 5/16-Inch nut drivers have strong magnets to easily hold bits and fasteners in place. Minimal chamfering on the nut drivers hex pockets increases surface contact between the nut and driver for better performance. All 40 pieces fit in a durable, impact-resistant case featuring steel hinges, a stay-shut latch and modular stackability with other cases of similar design.

Brand: KLEIN TOOLS


Item Length: 7 Inches


Material: Blend


Finish Type: Uncoated


Number of Pieces: 1


Drive System: Square


Drive Bit Shank Style: hex shank


Bit Compatibilities: impact driver


Item Length: 7 Inches


Number of Pieces: 1


Material Type: Blend


Finish Types: Uncoated


Brand Name: KLEIN TOOLS


Model Number: 33801


Set Name: Impact Driver Bit Set


UPC: 092644338014


Global Trade Identification Number: 14


Manufacturer: Klein Tools


Manufacturer Part Number: 33801


Item Type Name: Driver Bit Set


Manufacturer Warranty Description: Call vendor for warranty


Included Components: ProFlex Impact Driver Bit Set, 40-Piece


Item Weight: 1.08 Pounds


Item Width: 3.75 Inches


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 9

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Affordable, long lasting, and get the job DONE.
Size: 40-Piece Driver Bits with Nut Drivers
Klein bits are phenomenal. Very well made, last forever, and this coming from a guy who uses nothing but Milwaukee and HILTI for my power tools. They are superior to Milwaukee's bits by miles, and I usually will only buy Klein or DeWalt when it comes to bits for my impact driver and or drill bits for my M18 fuel hammer drill. They hold up very nicely, are easy to take out of the pack it comes in, which is also built very well, and can "mate" to other Klein boxes as part of their "packout" system. I Particularly like their nut drivers as the magnet and tool itself is simply superior to other brands. ... show more
Reviewed in the United States on February 4, 2026 by Matthew S Vozza
    • Good stuff...reliable company
Size: 40-Piece Driver Bits with Nut Drivers
It fit me needs because there is always some sort of wild bit design that I don't have. Appears to be high quality expected of Klein tools. The case was an added bonus...seems solid. A bit challenging to pull the smaller bits out of their spot but I suppose that's better than them falling out and rattling around in the case. ... show more
Reviewed in the United States on December 29, 2025 by Dennis
    • Great Present for Any Occasion
Size: 40-Piece Driver Bits with Nut Drivers
The Klein Tools 33801 Impact Driver Bit Set is an absolute gem for any DIY enthusiast or professional! I gifted this set to my brother, who is always tinkering with tools, and he couldn’t stop raving about it. The ProFlex S2 Steel Phillips bits are incredibly durable and built to withstand heavy use, making them perfect for any project—big or small. The magnetic nut drivers are a game-changer. They hold screws securely, saving time and frustration, especially when working in tight spaces. The variety of sizes included in the set is impressive, ensuring you’re prepared for any task. It’s compact, well-organized, and easy to carry around, which is another huge plus. This bit set isn’t just a practical tool—it’s a fantastic gift for any occasion. Whether for a birthday, holiday, or just because, it’s the kind of present that’s both thoughtful and useful. It’s a great choice for anyone who loves to work with their hands or just needs reliable, high-quality tools in their collection. Highly recommend the Klein Tools Impact Driver Bit Set for its durability, versatility, and thoughtful design. It’s the gift that keeps on giving! ... show more
Reviewed in the United States on November 15, 2024 by Megan
    • Toolset for jobsite work
Size: 40-Piece Driver Bits with Nut Drivers
Quality tool set as expected. Little pricey but the longevity should pay for it self.
Reviewed in the United States on March 9, 2026 by Tom
    • Just the tip
Size: 40-Piece Driver Bits with Nut Drivers
Nice little kit of high quality bits. You can tell the difference in quality when you use cheap tools and these
Reviewed in the United States on February 27, 2026 by Rubin
    • Good quality bits, but very tight holes making extraction difficult.
Size: 40-Piece Driver Bits with Nut Drivers
This is a great kit if you pick up a cordless impact driver. With this kit you'll have nearly any bit you'll ever need. The case itself is very strong, and the bits seem to be of high quality. Used them frequently on 'hard' to break open screws. Only complaint is on the case itself. The bits are extremely, extremely secure. So secure, that usually I have to use a pair of pliers or something to extract the bit from it's socket in the case. I'm a larger man, and my hands will get hurt (if I'm not wearing gloves) to extract the bits from their sockets. In summary, the socket holes need to be increased by a few microns so the bits are easier to extract. A few of my common use bits have loosened up over time, but just by a bit. This would be easy 5 stars if it wasnt for the too-small holes for the bits in the case. However, dont let this deter you. This is a lifetime quality and the bits will likely outlast the tool (and maybe the user!). ... show more
Reviewed in the United States on March 16, 2025 by A Guy named Mike in Texas
    • Really strong and great organization.
Size: 40-Piece Driver Bits with Nut Drivers
Review Image by ApexWarBear
Review Image by ApexWarBear
Review Image by ApexWarBear
Review Image by ApexWarBear
Review Image by ApexWarBear
Review Image by ApexWarBear
Review Image by ApexWarBear
I repair appliances and i use this box (8-10) hours a day, every day. I use it to prop up washing machines as a wedge. I also needed the larger (more beefy) bit inserts, so unfortunately I spent $20 on a different mod box specifically to steal the two wider bit holders (you can see in the pictures) . I'm uploading these pictures to hopefully help other people see what's possible to put in these boxes. Every time I've needed a new bit whether it's a security bit or whatever, I take a bit that I've never used out and put the new bit in. At this point I still have some of the original line of bits, that have never been used but plenty of the other slots have changed. I hope this helps. ... show more
Reviewed in the United States on January 20, 2026 by ApexWarBear
    • .good purchase
Size: 40-Piece Driver Bits with Nut Drivers
So far so good holding up well great brand always reliable
Reviewed in the United States on April 12, 2026 by Greg

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