HARDEN Professional 9-Piece Extra-Long Ball-Point Hex Key Set | 540615

Description

Access the most difficult fasteners with ease using the HARDEN 540615 Extra-Long Hex Key Set. Designed for professional mechanics, industrial technicians, and precision engineers, these wrenches are the definitive solution for high-torque applications in deep or obstructed spaces. Unlike standard short-arm keys, the Extra-Long series provides massive leverage for breaking loose seized bolts and reaches deep into engine bays or machinery housings where others fail.

Forged from high-density S2 Alloy Steel and heat-treated to a professional HRC 58-62 hardness, these keys resist twisting and stripping under extreme loads. The innovative Ball-Point End allows for an entry angle of up to 25 degrees, enabling you to turn bolts that are obstructed or off-center. Finished with a satin chrome anti-corrosion coating, each key features a precision-milled chamfered tip for a snug, non-slip fit. Housed in a hinged, high-impact storage organizer, the HARDEN 540615 is built to survive the rigors of a professional workshop.

Key Features & Benefits:

• Industrial S2 Alloy Steel: Forged from premium S2 steel for 30% higher torque strength and better shock absorption than standard Cr-V.

• Extra-Long Arm Design: Provides superior reach and maximum leverage, making it easier to loosen tight or rusted fasteners.

• 25° Ball-Point Access: The spherical head allows for off-axis entry, perfect for working in confined or obstructed spaces.

• Precision-Milled Chamfered Tips: Ensures a smooth, secure fit into the screw head to prevent rounding and stripping.

• High-Contrast Size Markings: Permanently stamped sizes on the holder and laser-etched on larger keys for rapid identification.

• Satin Chrome Finish: Provides a professional look with elite resistance to rust, grease, and industrial solvents.

• Heavy-Duty Hinged Holder: Keeps the set organized and prevents keys from falling out in your tool chest.

Technical Specifications:

• Model Number: 540615

• Material: S2 Alloy Steel (HRC 58-62)

• Wrench Type: Ball-Point / Extra-Long Arm

• System of Measurement: Metric

• Finish: Satin Chrome

• Sizes Included: 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm

Ideal For:

• Automotive Maintenance: Accessing recessed bolts in engine blocks and suspension components.

• Industrial Machinery: Servicing complex factory equipment with deep-set internal-hex fasteners.

• Bicycle & Motorcycle Repair: Perfect for the high-torque needs of pedal cranks and frame assemblies.

• General Construction: Heavy-duty fastening in structural steel and timber framing projects.