1WEAR RESISTANT BRISTLES: Soft nylon bristles ensure that the surface will not be scratched or damaged, with strong durability and wear resistance, can be used for a long time without easy damage 2EFFICIENT BURR REMOVAL: The key machine burr brush use a special bristle design to quickly remove burrs from the surface of the key. Burr can cause friction between the key and the lock core, affecting the use of experience, the use of burr brush can effectively solve this problem 3ACCURATE BRISTLE POSITIONING: The key machine burr brush has an accurate bristle positioning device, which can be adjusted according to different key shapes and sizes to ensure that every burr can be brushed to ensure the cleaning effect 4VARIOUS FUNCTIONS: In addition to removing the burrs on the surface of the key, some key machine burr brushes also have other functions, such as cleaning the dust in the keyhole, removing accumulated debris, etc., improving the convenience of use 5APPLICABLE MODEL: Replacement nylon brush 60x22mm is suitable for US102 key machine, which is a must have accessory for any locksmith or key cutting professional 1 x Key Machine Brush