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KLEIN TOOLS

Klein Tools 33801 Impact Driver Bit Set with Magnetic Nut Drivers, 40-Piece

Based on 537 reviews
Condition: New
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$19.98
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Nov 16
Order within 7 hours and 49 minutes

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At a glance

Condition
New
Size
40-Piece
Weight
1.1 lb
Material
Blend
Item Length
7 in
Finish Type
Unfinished
Set Name
Impact Driver Bit Set
In the box
ProFlex Impact Driver Bit Set40-Piece

Features 7

  • 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

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.

Specs 24

Brand KLEIN TOOLS
Item Length 7 inches
Material Blend
Finish Type Unfinished
Number of Pieces 1
Brand Name KLEIN TOOLS
Model Number 33801
Item Highlight ProFlex S2 Steel Phillips, Slotted, Square, TORX Bits with Case, MODBox Compatible

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 16

Yes, absolutely! This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

Affordable, long lasting, and get the job DONE.
Size: 40-Piece
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
They’re dope
Size: 40-Piece
I toss these in the bag with my drill/driver set. They’re great. Really hard, but not brittle. Good selection of bits and lengths.
Reviewed in the United States on August 31, 2026 by Michael D. Messmore
Klein strikes again, good stuff!
Size: 21-Piece Bits
The tools are well made. The case is nice. You can put a few extra things inside the case also. Great buy.
Reviewed in the United States on September 24, 2026 by Larry B.
Great Present for Any Occasion
Size: 40-Piece
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
Good Set
Size: 40-Piece
Great little bit set from a dependable brand. Even the case feels sturdy and of good quality.
Reviewed in the United States on September 12, 2026 by ZK2000
Good quality bits, but very tight holes making extraction difficult.
Size: 40-Piece
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
Useful set
Size: 40-Piece
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.
Quality
Size: 40-Piece
Good bits
Reviewed in the United States on September 22, 2026 by Luke
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