1[Efficient Deburring] The key machine brush is designed to easily remove burrs from key surfaces, with precise bristle positioning device, ensuring that every burr can be brushed. 2[Soft Nylon Bristles] The brush features soft nylon bristles that effectively remove burrs without scratching or damaging the surface, providing gentle yet thorough cleaning. 3[Multi Functional] This nylon brush is not only suitable for deburring key burrs but also can be used for cleaning the dust inside the keyhole, removing accumulated debris etc. 4[Reliable Construction] Made with nylon and stainless steel materials, this key machine deburring brush is built to last, sturdy and resilient, ensuring long term use and durability. 5[Practical Tool] Burrs can cause friction between the key and lock cylinder, affecting the user experience. Using this deburring brush to effectively solve this problem. 1 xKeyMachineDeburringBrush