Klein Tools Folding Hex Key Set 9-Piece SAE Sizes 5/64-1/4 Inch Alloy Steel Satin Finish

Klein Tools Folding Hex Key Set 9-Piece SAE Sizes 5/64-1/4 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 9-piece set features square-cut hex ends designed for electricians, technicians, and maintenance 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 - Provides secure full-depth fit and maximum contact with hex sockets to prevent slippage and stripping
• Dual Position Design - Folding hex keys offer two key positions (straight-out or right angle) for extra leverage and accessibility
• Complete SAE Range - Includes nine essential sizes from 5/64-inch to 1/4-inch for comprehensive fastener compatibility
• Compact Folding Design - Handy set fits easily in pocket or tool box while eliminating the lost key problem

Durability & Construction

• Alloy Steel Construction - High-strength alloy steel provides exceptional durability and resistance to wear for long-lasting professional use
• Satin Finish - Corrosion-resistant satin finish protects against rust and provides smooth operation in demanding work environments
• Professional Grade Quality - Klein Tools manufacturing standards ensure consistent performance and reliability for electrical and mechanical applications

Technical Specifications

Overall length 5.5 inches (14 cm), handle length 4.375 inches (11.1 cm), dimensions 4.2 x 5.5 x 1.0 inches, weight 0.5 pounds. Includes hex key sizes: 5/64-inch (2 mm), 3/32-inch (2 mm), 7/64-inch (3 mm), 1/8-inch (3 mm), 9/64-inch (4 mm), 5/32-inch (4 mm), 3/16-inch (5 mm), 7/32-inch (6 mm), and 1/4-inch (6 mm). Alloy steel construction with satin finish for corrosion resistance.

Installation & Usage

1. Select appropriate hex key size for fastener application
2. Unfold key from compact housing to straight-out position for standard access
3. Position key at right angle for increased leverage in tight spaces
4. Insert square-cut hex end fully into socket for maximum contact
5. Apply steady pressure while turning to prevent slippage and socket damage
6. Fold keys back into housing for compact storage and organization

Professional Applications

Ideal for:

• Electrical Installation - Panel mounting, junction box assembly, and electrical enclosure maintenance
• HVAC Systems - Equipment mounting, ductwork connections, and control panel adjustments
• Industrial Maintenance - Machinery adjustment, equipment repair, and facility maintenance tasks
• Telecommunications - Rack mounting, equipment installation, and cable management systems
• Construction Work - Hardware installation, fixture mounting, and structural assembly
• Automotive Service - Engine components, brake systems, and electrical connections
• Electronics Assembly - Circuit board mounting, component installation, and precision adjustments
• General Maintenance - Equipment servicing, repair work, and facility upkeep applications

Folding Design Advantage

Klein Tools folding hex key design provides superior organization and portability compared to loose individual keys. The compact folding housing prevents key loss while the dual-position capability offers both straight-out access and right-angle leverage for confined spaces. Square-cut hex ends ensure maximum socket contact and prevent fastener damage during professional applications.

Why Choose Klein Tools Quality?

Since 1857, Klein Tools has maintained America's highest standards for professional tool manufacturing. Each folding hex key set undergoes rigorous testing to ensure precision fit, durability, and safety compliance. Klein Tools commitment to quality means electrical professionals and technicians can rely on consistent performance, exceptional longevity, and the trusted reliability that has made Klein Tools the preferred choice for demanding trade applications.