Tungsten steel file ：dental arch trimmer Tungsten steel is used as the main material of the file, which greatly improves the hardness and can be easily polished. High Speed : model trimmer dental a high-quality motor is used as the engine, making the speed as high as 5500 rpm or more. Make your polished products more delicate. Moderate Volume : The dental lab grinder size of the is moderate. There is little need for venues. The reserved dust outlet can be used together with a vacuum cleaner. Easy to use : dental lab trimmer Adopt one-button start mode. You don't need to adjust any parameters. If you want to adjust the height or change the file, please follow the instructions. Note : After power on, check whether the operation is normal. If not, please check the status of the fuse. Do not touch the rotary file with bare hands while the machine is running. Operation with gloves is strictly prohibited!