Strong and Uniform Suction: Featuring high-performance magnetic steel, our Permanent Magnetic Chuck offers strong suction (≥100N/Cm² OR ≥150N/Cm²) with no residual magnetism. The fine magnetic pole gap of 0.5+1.5 ensures uniform magnetic force distribution, greatly enhancing work efficiency during grinding or milling tasks. High Precision: Designed as an essential accessory for tools and home improvement projects, the Permanent Magnetic Chuck is equipped with high-quality brass panels and specialized magnetic circuits that guarantee smooth operation. The detachable handle with a NO/OFF mechanism allows effortless switching between states, optimizing workflow. Dustproof and Waterproof: This Permanent Magnetic Chuck is expertly sealed to prevent dust and cutting fluids from entering, thereby extending its service life. Its design, featuring a fine pole gap, achieves uniform magnetic force distribution, making it particularly effective for processing thin and small workpieces without causing any scratches. Easy Installation: The Permanent Magnetic Chuck comes with a convenient wrench and a set of pressure plate screws, enabling quick installation for immediate use. It operates safely without a power supply, and the mechanical switch minimizes risks associated with power outages, ensuring reliable magnetic clamping. Wide Application: Our Permanent Magnetic Chuck is versatile enough for various applications, including surface grinders, tool grinders, EDM, wire cutting, tapping machines, and bench drills. It is the ideal choice for anyone looking to process different magnetic workpieces efficiently and effectively.