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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

  • Based on 384 reviews
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026

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Availability: In Stock.
Fulfilled by Amazon
Arrives Nov 14 – Nov 15
Order within 16 hours and 34 minutes
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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


Brand: ‎KLEIN TOOLS


Item Length: ‎7 Inches


Material: ‎Blend


Finish Type: ‎Uncoated


Number of Pieces: ‎1


UPC: ‎092644338014


Global Trade Identification Number: ‎14


Manufacturer: ‎Klein Tools


Part Number: ‎33801


Item Weight: ‎1.08 pounds


Item model number: ‎33801


Is Discontinued By Manufacturer: ‎No


Size: ‎One Size


Color: ‎Orange


Style: ‎40-Piece


Finish: ‎Uncoated


Pattern: ‎Solid


Shape: ‎Rectangular


Power Source: ‎hand_powered


Item Package Quantity: ‎1


Head Style: ‎Security Torx


Compatible Fastener Range: ‎0.25 inches


Special Features: ‎Square Shaft


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


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: December 9, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 14 – Nov 15

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great Present for Any Occasion
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
    • Love Klein tools
What can i say a Klein tool speaks for its self they are roughed and tough and priced good.
Reviewed in the United States on October 6, 2025 by charles
    • Well made
Well made and good price. Comes in a nice case and has a good variety of bits.
Reviewed in the United States on August 30, 2025 by Jeff Quade
    • Great set of bits
Review Image by Jerome Jerome
Review Image by Jerome Jerome
Very Sturdy, plenty of bits, easy functionality but what impresses me the most is how easy they are to remove from the slots
Reviewed in the United States on July 19, 2025 by Jerome Jerome
    • Quality tool
Very good quality, no rounding of edges on the ones I have used.
Reviewed in the United States on September 8, 2025 by Jerry L
    • Good quality bits, but very tight holes making extraction difficult.
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
    • Great set for the tool box
This set is perfect size for traveling with the tools. They come in a nice case that keeps the bits in place and ready
Reviewed in the United States on October 17, 2025 by Boogie
    • Useful set
This is an affordable bit and bit holder set. I mostly use robertsons and torx screws. So this set has me covered. I also found that the bit holder works with my wear screw driver. These are not indestructible bits but I haven’t destroyed them yet after using for a month. I usually destroy at least the torx bits but these Klein tools seem to hold up better than average. ... show more
Reviewed in the United States on August 3, 2024 by Bryce T.

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