Our tools are widely used in construction projects, pipeline installation, and industrial maintenance worldwide.
The YONK Long Arm Hex Key Set is engineered for professionals and DIY enthusiasts who need reliable, high-performance tools for internal hexagonal fastener tasks.
Each hex key is forged from high-grade S2 alloy steel, then heat-treated to achieve an exceptional hardness of HRC 60±2. This ensures superior wear resistance, impact resistance and torque capacity, far outperforming ordinary carbon steel tools. The mirror-polished surface resists rust and corrosion, ensuring long-lasting durability even in harsh working environments.
The unique ball end (hexagonal socket) design allows the wrench to be inserted at an angle (up to 25 degrees), making it perfect for hard-to-reach areas where a standard straight key cannot fit. The extra-long arm provides excellent leverage, reducing the force required for tightening or loosening stubborn screws. The L-shaped structure doubles the handle length for maximum torque.
Precision-machined tips ensure a precise, snug fit with metric hex screws, preventing rounding and cam-out. The smooth surface allows for easy rotation, even under high load, protecting both the tool and the fastener.
This set includes a full range of common metric sizes (typically 1.5mm - 10mm or as per set), covering all your internal hexagonal fastening needs. It is ideal for bicycle maintenance, furniture assembly, automotive repairs, industrial equipment and home DIY projects.
