Enhance your machining projects with this high-performance ER11 Chuck and Nut set, crafted from premium spring steel material for exceptional hardness, strength, and toughness. Designed to deliver large clamping force and accommodate a wide clamping range, this ER11 chuck ensures high precision and stability for various industrial and hobby applications. Key Features: · Premium Spring Steel Construction: Made from selected spring steel, offering superior hardness and durable toughness to withstand rigorous use and provide long-lasting performance. · Strong Clamping Force: Provides a secure grip on tools and bits, minimizing vibration and improving machining accuracy. · Wide Clamping Range: Available with optional chuck sizes of 3.175mm, 4mm, 5mm, and 6mm, accommodating various tool diameters for versatile application. · High Precision and Stability: Meticulously crafted details ensure reliable operation, enhancing the precision of boring, milling, drilling, wire tapping, engraving, and other machining processes. · Versatile Usage: Ideal for use in CNC machines, rotary tools, and other machining equipment requiring precise tool holding solutions. · Easy Replacement: Serves as an excellent replacement for worn or outdated ER11 chucks, maintaining consistent machining performance. Specifications: · Material: Spring Steel · Model: ER11 · Optional Chuck Sizes: 3.175mm, 4mm, 5mm, 6mm Package Includes: · 1 x ER11 Chuck · 1 x Nut This durable and precise ER11 Chuck and Nut set is essential for professionals and enthusiasts seeking reliable tool holding solutions across a variety of machining tasks, ensuring enhanced accuracy, stability, and productivity in your projects.