Features
Klein Tools' Pro Folding Hex Key line features a highly durable reinforced nylon handle with easy access to each key. The heavy-duty 10-Piece set includes 4-Inch-long extended reach blades and a strategically placed #2 Phillips fastener on the outer body for effortless key tension adjustment. Klein Tools' hex sets are color-coded for quick identification: red for inch, blue for mm, and green for Torx®, enhancing efficiency.
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Premium product made of heat-treated alloy steel that is durable and resistant to rust
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High-leverage keys designed to maximize force transfer, with metric sizes up to 12mm
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Multi-purpose hex key made with open sides for convenient use of every key
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Designed to be compact for ease of use, made to carry around in your pocket
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 and black phosphate coated to prevent rust
Openings on the sides of case provide unimpeded access to outer keys
![Klein Tools](http://hausoftools.myshopify.com/cdn/shop/files/brandPage_klein-tools_1024x1024.png?v=4590382781443469872)
Klein Tools is the result of one of those “happy accidents” that turn out to be revolutionary. Klein Tools famously got their start in 1857 when a linesman came to founder Matthias Klein to repair his broken pliers. Klein replaced the broken half and when the old half of the tool broke too, Klein forged a replacement for that, thus making the first Klein Linesman pliers. Since these humble beginnings, Klein Tools has grown and become one of the largest American made toolmakers and they’re a brand used by tradesmen, linesman and electricians all across America.