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Klein Tools 646M Tool Set, Magnetic Nut Drivers Sizes 1/4 and 5/16-Inch, 6-Inch Shafts, 2-Piece

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Number of Items
Klein Tools
Prime Eligible
Is Amazon Fulfilled
Amazon Fulfilled
0.400 Pounds
10 Inches
10 Inches
10 Inches
See Product Details on AmazonSee Product Details on Amazon
  • Tool Set includes general purpose selection of the most frequently used nut drivers
  • Tool Set includes two nut drivers (Cat. No. 646-1/4M and 646-5/16M)
  • Full-hollow shaft design with Rare Earth magnetic tip facilitates work on bolt applications
  • Handle end is color-coded for easy identification
  • Internal flanges provide solid, twist-resistant shank anchor
This 2-Piece Magnetic Nut Driver set from Klein Tools features two of the most frequently used nut driver sizes. They feature full 6-Inch (152 mm) hollow shafts that fit easily over extra-long bolts and studs. The handle end is also color coded to easily identify the nut drivers in a tool bag or pouch. Nut driver sizes included in set: 1/4-Inch and 5/16-Inch. Nut driver has 6-Inch hollow shaft with magnetic tip. Color-coded cushion grip handle offers great comfort and torque. Cushion-Grip handle allows for greater torque and comfort. Color-coded for easy identification. For more than 160 years...
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Customer Feedback
the good
the ok
the bad
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Very comfortable to work with.
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Awesome Klein product as usual!Love the extra reach and the pass through magnet.
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Need I say more.
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I've used these screwdrivers for years now.
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Second set and work very well in the hvac world.
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Category: Nut Drivers

The usual price range for a nut driver is between $3.48 to $119.99.

If you want to know about nut drivers in general, please go to our Nut Drivers: Things to Know Before Buying in 2020 page to learn more!

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Editorial Reviews

Jane's Review: Should I buy this product?

Jane's Review

Yes! I recommend this screwdriver/nut driver based on manufacturer ratings. Let's go over the reasons why buying this screwdriver/nut driver now is a good idea, and also things to consider before you decide on this item.

1. Manufacturer has very positive reviews on all their products!

The maker of a product is another factor you want to definitely consider before you buy anything. What if there is a piece missing or there is some defect in the product? With anything you buy online, there is a small chance of this happening. But don't worry too much, because Amazon has an amazing 30-day refund policy (Amazon❤️). Still, you want to make sure that the manufacturer or the seller has been helpful in resolving this kind of problem and/or has been helpful to its customers about general product inquiries. As you see in my manufacturer report below, Klein Tools has very positive reviews for their products. It's generally a good sign if the manufacturer has good reviews overall. If your purchase decision heavily involves how well they make their products and treat their customers, this is likely a safe bet.

2. This screwdriver/nut driver has positive reviews on the internet

Some people have a great experience with a product, while some are unlucky and get a defected item and have to go through the whole process of returning them. Since people have different experiences about a product due to various reasons, don't read too much into one good or bad review. Reading multiple reviews with different ratings can help you picture how good/bad the product generally is.

This screwdriver/nut driver has positivereviews on the internet, and based on current trends, it's likely that people will like this screwdriver/nut driver more a week later. I summarized what fans and haters say about this product above in the good/ok/bad table, so don't forget to read those since they paint the whole picture! And of course, if you want to read more detailed reviews, many of them are on Amazon!See More Reviews on AmazonSee More Reviews on Amazon

3. The price might go up, so buy now if you need this!

image/svg+xml Highest Price Lowest Price $25.47 $19.45

Price is one of the most important factors in making a purchase decision. I analyzed the price of this product in four parts: its recent price change, when it was most expensive/cheapest, its price volatility, and a price prediction I made, just in case you want to wait.

First off, let's talk about its recent price change. The price of this product has not changed from May 18, 2020 to May 20, 2020, which means that it has steady and healthy supply!

Next, we need to look at its highest price and lowest price. Historically, the highest price point for this screwdriver/nut driver was $25.47, and the lowest price point was $19.45. The current price is nearly the highest it has ever been. If the best price is what you're after, now isn't exactly a good time to buy this screwdriver/nut driver.

What about its availability and price volatility? This is another aspect we have to dig into before buying something. I haven't seen this product being unavailable since I started reviewing this product. So as far as the availability goes, this product is solid. If you plan to make a repeat purchase of this kind of item, this is your product! In addition, the price tends to stay more or less the same. Not a lot of price movement is expected, but the price could still move in either direction by a smidge.

Considering all this, will the price go up or down in a week? Based on past price points, I expect the price to be $25.09 a week from now. It might be best to purchase as soon as possible before the price becomes too high.

Check Current Price on AmazonCheck Current Price on Amazon

4. Make sure Klein Tools is a brand you can trust

Klein Tools doesn't attract too many people on Amazon among other screwdriver/nut driver brands. I couldn't find any YouTube videos, Reddit posts, or news articles that directly mention this product, but this can be just me not looking hard enough. Will update this when I have more info!

One thing to be careful about here is that I'm not verifying if this product's maker is a household name or not. This section is more focused on whether this is proven enough by its consumers, whether people actually love this product.

5. There are other options you might want to check out

image/svg+xml Klein Tools Other similar brands: TEKTON ARES Felo Wiha

I found 5 brands that have similar products like this one: TEKTON, ARES, Felo, Wiha, and XCSOURCE. 'If you're looking for a cheaper alternative, you might want to look at a similar product from XCSOURCE. If you're looking for a screwdriver/nut driver with best reviews, a product from Felo gets the best score on the internet. If your primary concern is whether the product is popular and well known, a similar product from ARES I linked below is a better option. I linked all the similar products in the similar products section so please check them out! Or you can check other similar products on Amazon, too.

See Similar Products on AmazonSee Similar Products on Amazon

That's it! I hope you learned enough about this product to make a purchase decision now. You can always ask me about anything via the bird button on the bottom right corner. Thanks for reading — I'm going to add more analyses on this review, so stay tuned!

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