Klein Tools 70552 Pro Folding Hex Key Set, 21-Key SAE and Metric Hex Key Set with High-Leverage Blades, 2-Pack

Features: 2 Pack Pro Folding Hex Key Set with extended-reach blades approximately 3.5-Inch to 4.5-Inch long for greater reach Effortlessly adjust key tightness or looseness with the convenient #2 Phillips fastener High-leverage blades open independently up to 270 degrees Hex-key ends are square-cut for a secure, full-depth fit and maximum contact with the socket to prevent slippage and stripping Reinforced nylon handle has a sturdy, comfortable grip Blades are made of tough, heat-treated alloy steel to prevent rust Openings on the sides of case provide unimpeded access to outer keys 21 Key sizes: 3/32-Inch, 7/64-Inch, 1/8-Inch, 9/64-Inch, 5/32-Inch, 3/16-Inch, 7/32-Inch, 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-inch 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm Details: Klein Tools 2-Piece Pro Folding Hex Key Set features 21-Keys including SAE and metric Sizes. This set combines the 11 most common SAE sizes and 10 common metric sizes all in one set to tackle any job. The hex ends are square-cut for a secure full-depth fit and maximum contact with the hex socket to prevent slippage and stripping of the socket. 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.