1. INNER AND OUTER PIPE REAMER This PVC chamfering tool features three builtin cutting blades with double cutting edges that turn the inner and outer burrs of pipes in one operation, revolutionizing the pipe experience for professionals and amateurs alike. 2. PRECISE AND SMOOTH PVC deburring tools have strong, sharpenable blades that ensure smoother, more precise chamfers and a longer lifespan. 3. EASY TO USE Secure the 0.315inch shank firmly to the drill and slide the pipe toward the blade. Apply gentle pressure and start drilling clockwise until the desired effect is achieved. 4. WIDE APPLICATIONS Suitable for chamfering pipes, the tools are designed for PVC, CPVC, ABS, PP, and PE pipes with an outer diameter of 0.92 inches to 3.89 inches and an inner diameter of 0.75 inches to 3.5 inches. Additionally, this pipe deburring tool is compatible with standard drills and cordless drills.