Durable and durable: This magnetic block has a special internal design that makes it more reliable, has a longer service life and is firmly connected. 【Strong Pulling Force】This magnetic block has been tested with industrial pure iron, and the vertical tensile force can reach 100-120N/cm2. High precision: the main structure is precise and robust. The magnetic force is evenly distributed, with a magnetic pole distance of 1.5 + 0.5 mm. Easy to use: The handle controls the switch of the machine and the connection and separation of materials. During the demagnetization process, the accuracy of the work surface remains unchanged, which is very convenient and easy. Comfortable to carry: Due to its light weight, it can be used as an airborne platform for disassembling and checking large workpieces. › See more product details; Product description 150 x 450 mm surface grinder permanent magnetic chuck. Specifications: --Model: 150*450mm (6\; Product description 150 x 450 mm surface grinder permanent magnetic chuck. Specifications: --Model: 150*450mm (6\; 150 x 450 mm surface grinder permanent magnetic chuck. Specifications: --Model: 150*450mm (6\ Model: Size: Color: