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🔧 Master every bolt with precision and comfort — the pro’s choice!
The Klein Tools 630-5/16 Nut Driver is a professional-grade, American-made tool featuring a 5/16-inch chrome-plated steel tip and a 3-inch hollow shaft designed for working on long bolts and stacked circuit boards. Its cushion grip handle enhances torque and comfort, while color-coded ends and the patented Tip-Ident system ensure quick size recognition. Trusted by professionals since 1857, this durable nut driver meets or exceeds ASME/ANSI standards for reliable performance.
| Asin | B001BY0ESW |
| Best Sellers Rank | #117 in Nut Drivers |
| Country Of Origin | USA |
| Date First Available | 7 August 2012 |
| Department | Hex Nut Drivers |
| Is Discontinued By Manufacturer | No |
| Item Model Number | 630-5/16 |
| Manufacturer | KLEIN TOOLS |
| Product Dimensions | 23.83 x 6.68 x 2.54 cm; 90.72 g |
User
Klein - Professional Grade - Would Buy Again
No surprise - I love Klein tools. And in my tool bag, I have all Klein tools - screwdrivers, pliers, etc. For much of my work, I find myself needing one of two different sized nut drivers. One is a 1/4in and the other is a 5/16in. I had the 1/4in, but I was missing the 5/16in - until I found this one on Amazon. Can't beat the price - shipped directly to my door - in a day or two. Seriously? Not worth driving to the big box store only to find out they're out. So now my tool bag is complete. I love the rubber handles of these Klein nut drivers. They're just like the handles on Klein screw drivers. The nut drivers have hollow shafts - perfect for long screws. And I especially like the distinct marking on the end of the handle showing the size of the nut driver. It matches my other nut driver perfectly. Looks good. Feels good. Easy to use.Works great - every time. Klein. I would definitely buy again. And I will. Thanks.
User
5/8" Fits Tri-Clamps Nicely
The 5/8" driver is large. I bought it to tighten up 1.5" and 3" high pressure tri-clamps (Dernord). It works quite well one handed, which is what I was after. I was worried at first that it wouldn't be deep enough to fit the larger bolts sticking out on some of the tri-clamps but it fits perfectly.All the Klein stuff I've owned is superb. This driver is good quality.
User
Muy resistente y buen tamaño
Me gustó el tamaño y q estuviera hueco una buena medida q no siempre hay en desarmador
User
Breaks fast
Head snapped off on 4th use. Not the Klein tools quality I knew..
User
Use it daily.
Great tool that I use at my job on a daily basis.
Trustpilot
3 weeks ago
2 days ago