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🧰 Unlock pro-level precision with Klein’s magnetic nut driver—because your toolkit deserves the best.
The Klein Tools 630-3/8M is a professional-grade 3/8-inch nut driver featuring a rare-earth magnetic tip and a 3-inch hollow shaft for easy access to long bolts. Made in the USA with premium alloy steel and chrome plating, it offers exceptional durability and corrosion resistance. Its patented Tip-Ident system and ergonomic Cushion-Grip handle provide quick size recognition and enhanced torque comfort, making it a trusted choice for professionals since 1857.
| ASIN | B000MKH4OS |
| Best Sellers Rank | #34,975 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #59 in Nut Drivers |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 1,860 Reviews |
| End Style | hang hole |
| Finish Types | Brushed |
| Global Trade Identification Number | 00092644652066 |
| Head Style | Hex |
| Included Components | Tools & Accessories |
| Is Non Sparking | Yes |
| Is Racheting | Yes |
| Item Length | 6.75 Inches |
| Item Package Quantity | 1 |
| Item Type Name | Klein Tools 630-3/8M 3/8-Inch Magnetic Tip Nut Driver with 3-Inch Hollow Shank |
| Item Weight | 3.2 Ounces |
| Manufacturer | Klein Tools |
| Manufacturer Part Number | 630-3/8M |
| Manufacturer Warranty Description | 1 year manufacturer |
| Material | Alloy Steel , Rubber |
| Material Type | Alloy Steel, Rubber |
| Measurement Standard | SAE (Inch) |
| Model Number | 630-3/8M |
| Operation Mode | Mechanical |
| Package Quantity | 1 |
| Point Count | 6 |
| UPC | 092644652066 |
| Unit Count | 1.0 Count |
| Wrench Length Style | standard |
C**Y
Quality tool
It is a driver, and does what it is designed for, well. Great brand. Expect it will last a very long time.
A**R
Great nut driver
One of the best 3/16 inch nut drivers for telecommunications work.
D**S
Excellent quality, will buy again
These nut drivers are excellent, they handle long studs with their hallow shank. The magnet is great but be cautious as it can come loose and stay on the nut rather than in the driver.
H**H
Worked for Oven Repair
The build quality and grip is solid. I purchased it as I was tired of ratcheting bolts off our oven I was fixing. It definitely was not necessary but had an immediate improvement on quality of life. If you deal with these size bolt heads often I would definitely pick this up.
J**H
I love this but this is just a replacement because I lost my previous one
I recently bought the Klein Tools 630-1/4M Nut Driver and I'm very happy with it. It's a great tool for tightening and loosening nuts in tight spaces. The magnetic tip holds the nut securely and the cushion-grip handle is comfortable and easy to use. The shaft is made of chrome-plated steel and the tip is heat-treated for durability. The nut driver is also color-coded for quick identification. I would recommend this tool to anyone who needs a reliable and handy nut driver. I give it 4 out of 5 stars. but don't lose it LIKE I did. ;)
J**S
Don't buy non-magnetic drivers.
This driver works perfectly. The magnetic head holds the screw tightly. I will never buy another one without the magnetic capability. Lesson learned by previous purchases of non-magnetic heads causing the screw to drop off.
C**N
I should have bought this years ago!
This 1/4" nut driver is exactly what I needed! I seemingly have to always find a 1/4" nut driver, which ironically. is bit socket size of my screwdrivers! Unfortunately, I either have to add the bit to get the extra reach for most screws, so I just decided to buy a dedicated driver and stuff fussing around with inter-changeable bits! I use 1/4" so often, its worth it for me to dedicate a tool for that purpose. You know Klein makes great, high quality tools and this is no different in that regard.
D**S
Would buy again
Would buy again
A**R
Magnetic tip
Very handy to have, magnetic tip nut driver
H**W
Does the job.
You can be sure that it's not going to fail and perform well based on the name. The tool isn't anything special, but the peace of mind the name gives is worth something.
G**Y
WAS A 5 NOW ITS A ONE!!!!!!
WELL LETS SEE I AM NOW MAD, THE NUT DRIVER THAT THEY SENT TO REPLACE THE PREVIOUS DEFECTIVE ONE IS ALSO DEFECTIVE OR THEY CANT READ. ITS SUPPOSE TO BE A MAGNETIC DRIVER WITH A HOLLOW SHAFT FOR LONG BOLTS IT IS NOT IN FACT THE END OF THE NUT DRIVER IS PLUGGED UP WITH THE MAGNET. SO I AM SENDING THIS ONE BACK ALSO WITH A VERY NASTY NOTE. KLEIN TOOLS USE TO BE THE BEST NOW I AM NOT SO SURE
H**R
Buenas compra
Es el segundo destornillador que compro. Buen soporte magnético
A**H
La punta magnética te ayuda mucho
Tiene buen agarre y en demasiado practico
Trustpilot
4 days ago
1 month ago