Search  for anything...

Klein Tools 631M Tool Set, Made in USA, Magnetic Nut Drivers Sizes 3/16, 1/4, 5/16, 11/32, 3/8, 7/16 and 1/2-Inch on 3-Inch Full Hollow Shaft, 7-Piece

  • Based on 1,251 reviews
Condition: New
Checking for the best price...

Buy Now, Pay Later


As low as $12.47 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Zaro Supplies Store

Arrives Monday, Sep 1
Order within 20 hours and 3 minutes
Available payment plans shown during checkout

Style: Magnetic


Features

  • Nut Drivers' full hollow shaft designed with Rare-Earth magnetic tips facilitate work on long bolt applications
  • Tool Set contains Nut Driver Cat. Nos.: 630-3/16M, 630-1/4M, 630-5/16M, 630-11/32M, 630-3/8M, 630-7/16M, 630-1/2M
  • Cushion-Grip handles allow for greater torque and comfort and internal flanges provide solid, twist-resistant shaft anchor
  • Tip-Ident quickly identifies nut driver hex orientation and size by color coding the handle ends so you can easily engage the nut driver with the fastener
  • Made in USA
  • 3/16-Inch does not have hollow shaft

Description

The Klein Tools Magnetic Nut Driver Set features 7 pieces of the most popular nut driver sizes and is perfect for a wide variety of applications. These nut drivers have magnetic tips and full hollow shafts that slide easily over long bolts or studs. Klein's patented Tip-Ident helps quickly identify the nut driver and size in a tool bag or pouch. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.

Brand: KLEIN TOOLS


Number of Items: 1


Head Style: Hex


Color: Black


Recommended Uses For Product: Construction, Home Improvement, Auto Repair, Furniture Assembly


Brand: ‎KLEIN TOOLS


Number of Items: ‎1


Head Style: ‎Hex


Color: ‎Black


Recommended Uses For Product: ‎Construction, Home Improvement, Auto Repair, Furniture Assembly


Special Feature: ‎Magnetic Tip


Item dimensions L x W x H: ‎13.4 x 7.5 x 1.5 inches


Item Weight: ‎3.2 ounces


Model Name: ‎631M


UPC: ‎092644652141


Global Trade Identification Number: ‎41


Head Size: ‎3/16", 1/4", 5/16", 11/32", 3/8", 7/16", 1/2"


Manufacturer: ‎Klein Tools


Part Number: ‎631M


Product Dimensions: ‎13.4 x 7.5 x 1.5 inches


Item model number: ‎631M


Is Discontinued By Manufacturer: ‎No


Size: ‎Magnetic


Style: ‎Magnetic


Finish: ‎Polished


Pattern: ‎Tool


Item Package Quantity: ‎1


Number Of Pieces: ‎7


Measurement System: ‎Inch


Compatible Fastener Range: ‎0.5 inches


Special Features: ‎Magnetic Tip


Included Components: ‎Tools/Accessories


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎1 Year Manufacturer


Date First Available: November 22, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 1

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.

Top Amazon Reviews


  • Typical Klein quality!
Style: Non-Magentic
Typical Klein quality tools. Not the least expensive out there, but if you use your tools daily these are a bargain. They also have a lifetime warranty - no questions asked replacement. This set has a wide range of sizes, comfy handles that allow a solid grip, and both labeled and color-coded as to size for a quick grab. ... show more
Reviewed in the United States on June 1, 2025 by John Beatty

  • Very pleased with this set of drivers.
Style: Non-Magentic
They're Klein, and that typically means quality tools and this set doesn't disappoint. I keep the set in my Veto MCT bag which lives in my van and I only pull it out on big jobs. I think what sets Klein apart is the color and sizes on the handle tips, makes them easy to identify and pull from the bag. Quality is just superb and I like that the shank is hollow. Couple weeks ago was working in a cooler and had to replace a little evaporator blower fan. I grabbed the MCT bag and used this driver set because nothing else was going to make quicker work of it than these. The set offers up the majority of sizes that I'll ever run into so for me it was perfect. If your looking for a great starter set, new to the HVAC trade like I was when I purchased this is a great set to go with. Keep in mind this isn't the set with the magnetic tips, this is the hollow shank type which is very useful for removing nuts on bolts that are very long. ... show more
Reviewed in the United States on March 11, 2018 by Wingnut

  • Klein quality
Style: Magnetic
High quality
Reviewed in the United States on January 19, 2025 by Richard D.

  • Fantastic quality nut-drivers in a convenient set
Style: Non-Magentic
Fantastic quality nut-drivers in a convenient set, handles are nice and grippy. Also, these won out of several other brands because the shafts are hollow, allowing them to be used over LONG studs, 3" or more. Which you never knew you needed until you just can't get to that one nut and it's 11:30PM on a Saturday and you have to drive somewhere in the morning. Only gripe: The size is marked on the end of the tools, and the markings are color coded, but when they're laying flat in a tool bag it's tough to see the markings. On some other brands I've seen, there is a color-coded band around the shaft or handle of the tool so that it can be more easily identified. But, the pros of this set far outweigh this minor con in my mind. ... show more
Reviewed in the United States on August 20, 2016 by James J.

  • Good stuff!
Style: Magnetic
Handy to have in the tool bag, quality that you can expect from from Klein.
Reviewed in the United States on June 20, 2024 by Mason stevens

  • Nut drivers
Style: Non-Magentic
With size on end easy to see the best idea
Reviewed in the United States on March 30, 2025 by Todd Clark

  • Quality / Familiar to the hand
Style: Magnetic
These are quality USA made, and I can use them with my eyes closed, they are so familiar to my hand. Not hollow shaft,
Reviewed in the United States on July 12, 2024 by mark Olsen

  • EXCELLENT THE VERY BEST
Style: Non-Magentic
These are the best nut drivers sold in the world: period. The long tube design allows them to cover long bolts which most cheaper ones can't do. Plus: Klein, the best electrical tools in the world and made in America. I bought both the SAE and Metric very expensive, but so is your life.Don't put your live on the line doing electrical work with cheap tools. ... show more
Reviewed in the United States on September 1, 2020 by Bill

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...