Enhance your machining and tooling precision with this high-quality ER20A Wrench, specifically designed for efficient nut rotation on ER type shanks, arbors, and extension rods. Crafted from premium cast steel and heat treated to achieve a hardness of 44-48HRC, this wrench offers exceptional durability and rigidity to withstand heavy-duty use without cracking or deformation. Key Features: · Durable Cast Steel Construction: Made from high-quality cast steel with advanced heat treatment, ensuring superior hardness (44-48HRC) and long-lasting performance even under rigorous conditions. · Precision Fit: Designed to tightly clamp nuts with precision, maintaining high rigidity and preventing slippage during operation for safer and more reliable use. · Ergonomic Handle Design: The wrench handle is expertly crafted to provide a firm grip, reducing hand fatigue and enabling effortless tightening and loosening of nuts. · High Work Efficiency: Engineered to improve productivity with less effort, making it suitable for repetitive and long-term use without causing operator fatigue. · Versatile Application: Ideal for use with ER type shanks, arbors, and extension rods, making it an essential tool for various precision machining tasks. Specifications: · Item Type: ER20A Wrench · Material: Cast Steel · Hardness: 44-48HRC Package Includes: · 1 x ER20A Wrench This ER20A Wrench combines robust construction, ergonomic design, and precise engineering to provide a reliable and efficient tool for all your nut rotation needs in industrial and workshop settings.