Klein USA 11 Key Pro Folding Hex Key Set ( SAE Sizes ) ( 70550 )

HIGHLIGHTS:

The Klein Tools 11-Key Pro Folding Hex Key Set, SAE (70550) is a heavy-duty professional folding hex key set designed to provide maximum leverage, durability, and convenience for fastening applications. Featuring 11 extended-reach SAE hex keys housed in a rugged reinforced nylon handle, this compact set keeps the most commonly used hex key sizes organized and readily accessible for electricians, mechanics, maintenance technicians, and industrial professionals.

Each hex key is manufactured from heat-treated alloy steel for exceptional strength and long service life. The extended-reach blades, approximately 4 inches long, open independently up to 270 degrees, allowing greater leverage and easier access to fasteners in confined or awkward locations.

The square-cut hex ends provide a precise, full-depth fit inside fasteners, maximizing contact while minimizing slippage and reducing the risk of stripping. A strategically positioned #2 Phillips adjustment screw allows users to easily adjust blade tension as needed for smooth operation.

The durable reinforced nylon handle offers a secure, comfortable grip for improved control during high-torque applications. Klein's Pro Folding Hex Key series is also color-coded for quick identification, with the orange/red handle identifying SAE sizes, helping professionals quickly locate the correct tool on the job.

FEATURES:

• 11-Piece Folding SAE Hex Key Set stores the most commonly used fractional hex sizes in one compact tool
• Extended-Reach Blades measure approximately 4" (10.2 cm) for improved access
• High-Leverage Keys open independently up to 270° for maximum versatility
• Square-Cut Hex Ends provide full-depth engagement and reduce fastener stripping
• Heat-Treated Alloy Steel Keys deliver outstanding durability and long service life
• Reinforced Nylon Handle provides a sturdy, comfortable grip
• Black Phosphate Finish improves corrosion resistance
• Adjustable Blade Tension using integrated #2 Phillips fastener
• Color-Coded SAE Handle allows quick identification among Klein folding hex key sets
• Compact Folding Design keeps keys organized and protected

APPLICATIONS:

• Equipment assembly
• Industrial maintenance
• Mechanical repairs
• Automotive servicing
• Electrical installation
• Machine maintenance
• General hex fastener applications

The Klein Tools 70550 Pro Folding Hex Key Set delivers professional-grade strength, extended reach, and organized portability, making it an essential tool for technicians and tradespeople who frequently work with SAE hex fasteners.