Klein Tools Keystone Screwdriver 5/16-Inch Tip 6-Inch Square Shank Heavy-Duty Rubber Handle

Klein Tools Keystone Screwdriver 5/16-Inch Tip 6-Inch Square Shank Heavy-Duty Rubber Handle

Professional-Grade Keystone Screwdriver with Square Shank Design

The Klein Tools Keystone Screwdriver delivers professional-grade performance for electrical and construction applications. This heavy-duty steel screwdriver features a precision-machined 5/16-inch keystone tip and 6-inch square shank 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 Performance

• Precision-Machined Keystone Tip - Exact fit design ensures optimal contact with screw slots, reducing cam-out and extending tool life with Klein's precision manufacturing standards
• Heavy-Duty Square Shank - 6-inch square shank allows wrench-assisted turning for maximum torque application in demanding electrical installations
• Special Heat-Treated Shaft - Advanced metallurgy provides superior strength and durability for professional electrical work and heavy-duty applications
• Internal Flanged Handle - Solid twist-resistant blade anchor prevents handle separation under high torque loads, ensuring reliable performance

Ergonomic Design & Durability

• Cushion-Grip Handle - Heavy-duty rubber construction provides superior comfort and torque transfer while reducing hand fatigue during extended use
• Premium Chrome Plating - Smooth feel and corrosion resistance for long-lasting performance in harsh electrical environments
• Tip-Ident System - Quick identification of screwdriver type and tip orientation for efficient tool selection and professional organization

Technical Specifications

Overall Length: 10.938 inches, Tip Size: 5/16-inch keystone configuration, Shank Length: 6 inches square design, Handle Material: Heavy-duty rubber with internal flanges, Weight: 0.4 lbs, Construction: Heat-treated steel shaft with chrome finish, Handle Dimensions: 2.367" width x 1.125" height, Made in USA quality with ASME/ANSI compliance

Installation & Usage

1. Select appropriate keystone tip size for screw slot width ensuring proper fit and contact
2. Position screwdriver perpendicular to screw head for optimal torque transfer and reduced cam-out
3. Apply steady downward pressure while turning to maintain positive engagement with screw slot
4. For high-torque applications, use wrench on square shank for additional leverage and control
5. Maintain clean tip condition for optimal performance and extended tool life
6. Store in organized tool arrangement using Tip-Ident system for quick identification

Professional Applications

Ideal for:

• Electrical Panel Work - Terminal connections, breaker installations, and panel modifications requiring precise keystone tip engagement
• Construction Applications - Heavy-duty fastening operations where square shank wrench assistance provides maximum torque capability
• Industrial Maintenance - Equipment servicing and machinery repairs demanding reliable tool performance and durability
• Residential Wiring - Outlet installations, switch connections, and fixture mounting with professional-grade precision
• Commercial Electrical - Large-scale electrical installations requiring consistent tool performance and ergonomic comfort
• Telecommunications Work - Equipment installations and service connections where precision tip engagement is critical
• HVAC Applications - Control panel connections and equipment installations requiring reliable fastening solutions
• Lineman Operations - Utility work and power line maintenance where tool durability and performance are essential

Square Shank Advantage

Klein Tools' heavy-duty square shank design provides superior torque multiplication capability through wrench assistance, enabling professional electricians to handle high-torque fastening applications with confidence. The precision-machined square geometry ensures positive wrench engagement while the heat-treated construction maintains dimensional stability under extreme loads.

Why Choose Klein Tools Quality?

Since 1857, Klein Tools has maintained America's highest standards for electrical tool manufacturing, combining traditional craftsmanship with modern precision engineering. Every screwdriver undergoes rigorous testing protocols to ensure ASME/ANSI compliance and professional reliability, delivering the trusted performance that generations of electricians and linemen have depended upon for safe, efficient electrical work.