🔩 Own the job with Klein’s pro-grade nut drivers — precision, comfort, and durability in your hands.
The Klein Tools 631 Nut Driver Set is a 7-piece professional-grade tool kit featuring commonly used hex sizes from 3/16" to 1/2" on 3-inch hollow shafts. Designed with ergonomic cushion-grip handles and color-coded tips for quick identification, this set offers superior torque, comfort, and twist-resistant performance. Made in the USA from premium alloy steel and backed by a lifetime warranty, it’s engineered for durability and precision in electrical, construction, and heavy-duty applications.
| Brand | KLEIN TOOLS |
| Number of Items | 1 |
| Head Style | Hex |
| Material | Alloy Steel |
| Color | Non-magentic |
| Recommended Uses For Product | Electrical work, DIY projects, Heavy-duty tasks involving various screw sizes and materials |
| Special Feature | Soft Grip |
| Item dimensions L x W x H | 9 x 8 x 2 inches |
| Model Name | 631 |
| UPC | 092644650154 |
| Global Trade Identification Number | 00092644650154 |
| Head Size | 3/16, 1/4, 5/16, 11/32, 3/8, 7/16, 1/2 inch |
| Manufacturer | Klein Tools |
| Part Number | 631 |
| Item Weight | 1.47 pounds |
| Product Dimensions | 9 x 8 x 2 inches |
| Item model number | 631 |
| Is Discontinued By Manufacturer | No |
| Size | Non-Magentic |
| Style | Non-Magentic |
| Finish | Brushed |
| Pattern | Tool |
| Shape | Rectangular |
| Thickness | 1 Inches |
| Power Source | corded-electric |
| Item Package Quantity | 1 |
| Measurement System | Inch |
| Certification | ANSI |
| Special Features | Soft Grip |
| Usage | personal |
| Included Components | 630-3/16, 630-1/4, 630-5/16, 630-11/32, 630-3/8, 630-7/16, and 630-1/2. |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Klein offers a lifetime warranty on material defects and workmanship for the normal life of the product. |
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