Klein Tools Folding Hex Key Set 5-Piece SAE Sizes 3/16-3/8 Inch Alloy Steel Satin Finish

Klein Tools Folding Hex Key Set 5-Piece SAE Sizes 3/16-3/8 Inch

Professional-Grade Folding Hex Key Tool Set

The Klein Tools Folding Hex Key Set delivers professional-grade hex key performance for electrical and mechanical applications. This alloy steel construction 5-piece set features precision-chamfered hex ends designed for electricians, linemen, and electrical professionals, providing the reliable performance and industry-leading quality that tradesmen demand from America's most trusted tool manufacturer.

Professional Features & Benefits

Precision Engineering

• Square-Cut Hex Ends - Secure full-depth fit with maximum contact to prevent slippage and socket stripping with Klein's precision manufacturing standards
• Precision-Chamfered Ends - Eliminate problems from cut-off burrs ensuring smooth insertion and professional performance
• Dual Position Design - Straight-out or right angle positions provide extra leverage for challenging applications
• Complete SAE Range - Five essential sizes (3/16", 7/32", 1/4", 5/16", 3/8") cover most electrical and mechanical fastening needs

Durability & Construction

• Alloy Steel Construction - High-strength material withstands professional use with Klein's rigorous durability testing standards
• Satin Finish - Corrosion-resistant coating provides long-lasting performance in demanding electrical environments
• Folding Design - Compact organization reduces likelihood of losing keys while maintaining professional accessibility

Professional Safety

• Non-Insulated Design - Clearly marked for mechanical applications, ensuring proper tool selection for electrical safety protocols
• Secure Folding Mechanism - Reliable locking system prevents accidental closure during professional use

Technical Specifications

Overall dimensions: 5.5 inches length x 4.9 inches width x 1.5 inches height, weighing 0.85 lbs. Handle length: 5.375 inches (13.7 cm). Key lengths range from 2.688 to 3.813 inches (6.8 to 9.7 cm). Alloy steel construction with satin finish. SAE measurement standard. Five-piece set includes 3/16", 7/32", 1/4", 5/16", and 3/8" hex keys.

Installation & Usage

1. Select appropriate hex key size for fastener using Klein's precision sizing
2. Unfold key to desired position (straight or right angle) for optimal leverage
3. Insert hex end fully into socket ensuring complete engagement
4. Apply steady pressure while turning to prevent socket damage
5. Use right angle position for increased torque when needed
6. Fold keys back into handle for compact storage and organization

Professional Applications

Ideal for:

• Electrical Panel Work - Terminal blocks, breaker installations, and control panel assembly
• Conduit Installation - Connector assembly, junction box mounting, and raceway systems
• Telecommunications - Equipment mounting, rack installation, and cable management systems
• HVAC Systems - Unit assembly, ductwork connections, and control system installation
• Industrial Maintenance - Equipment servicing, motor connections, and machinery assembly
• Construction Work - Structural connections, hardware installation, and mechanical fastening
• Automotive Electrical - Battery connections, alternator work, and electrical component installation
• Commercial Electrical - Lighting fixtures, switch gear, and distribution panel work

Folding Design Advantage

Klein Tools' folding hex key design eliminates the common problem of lost individual keys while providing professional accessibility. The compact organization fits easily in tool boxes or pockets, ensuring essential hex keys are always available when needed. The dual-position capability provides versatility for tight spaces and high-torque applications that electrical professionals encounter daily.

Why Choose Klein Tools Quality?

Since 1857, Klein Tools has maintained America's highest standards for electrical tool manufacturing. Each folding hex key set undergoes rigorous testing protocols to ensure precision fit, durability, and safety compliance. Klein's commitment to professional-grade construction and American craftsmanship delivers the reliable performance that electricians, linemen, and electrical contractors trust for critical applications.