Heavy Duty Silicon Carbide Abrasive Nylon Tube Brushes. Customizable Dimensions: Brush dimensions and materials can be custom made according to your application. High Density Filaments: High density of abrasive wires provide aggressive action on holes and good performance. Strong Stem Construction: Strong stem with four pieces of steel wires can be directly mounted on power tools. Protective Cutting Tip: Cutting brush tip with protective tip protects holes or tubes from sharp scratching. Versatile Grit Options: Regular grits 120-360#, other grits like 80-600# can be custom made. Dual Stem Spiral Design: Double spiral, double stem construction with cutting tip and cutting end. Multiple Material Choices: Filaments available in silicon carbide, aluminum oxide, and other abrasive wires. OEM/ODM Acceptable: We accept OEM and ODM orders for customized industrial brush solutions.