HARDEN 13-Piece Professional Imperial Long-Arm Hex Key Set | 540613

Description

Master precision fastening with the HARDEN 540613 13-Piece Long-Arm Imperial Hex Key Set. Engineered for professionals who demand consistent performance, this comprehensive SAE (Fractional) set is essential for servicing North American machinery, classic automotive components, and industrial equipment that utilizes imperial fasteners.

Forged from premium Chrome Vanadium (Cr-V) steel and fully hardened, these wrenches are built to withstand high levels of torque without twisting or rounding. The long-arm design provides two distinct advantages: the extended length offers massive mechanical leverage for breaking loose stubborn bolts, while the slim profile allows deep access into recessed housings. Each key features a satin finish for superior corrosion resistance and a non-slip grip in oily environments. The set is housed in a heavy-duty organized holder with high-visibility size markings for rapid selection on the job.

Key Features & Benefits:

• 13-Piece Comprehensive SAE Range: Includes every essential size from the micro 1/20" up to the heavy-duty 3/8" for total imperial compatibility.

• Fully Hardened Cr-V Steel: Industrial-grade construction ensures maximum durability and exceptional resistance to tip deformation.

• Long-Arm Leverage: The extended shaft design provides the extra torque needed for tightened industrial fasteners and deep-reach access.

• Precision-Cut Ends: Chamfered edges ensure a burr-free, snug fit into bolt heads, significantly reducing the risk of stripping or "cam-out."

• Satin Chrome Finish: Provides a professional look while offering elite protection against rust, grease, and workshop chemicals.

• Industrial Storage Organizer: Keeps keys locked in place and organized by size, making it easy to spot a missing tool before leaving the site.

Technical Specifications:

• Model Number: 540613

• Measurement System: Imperial / Inch (SAE)

• Sizes Included: 1/20", 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8"

• Material: Forged & Hardened Chrome Vanadium (Cr-V) Steel

• Finish: Corrosion-Resistant Satin Finish

Ideal For:

• Industrial Maintenance: Servicing imported machinery and legacy production lines that use SAE fasteners.

• Classic Automotive Repair: Essential for working on vintage American engines and drivetrain components.

• Aerospace & Defense: Precision fastening in sectors where imperial standards remain the requirement.

• Heavy Equipment Service: High-torque maintenance on hydraulic systems and agricultural machinery.