About This Material: These tube reamer are made of plastic body and hardened alloy steel blade. Reliable quality, strong and durable. Practical design: This deburring tool can work in both clockwise and anti-clockwise directions, and the inner cone with 3 inclined tilt tube reamer, very sharp. With both inner reamer and outer reamer design, it is suitable for deburring both inside and outside of the tube. Easy to use: The pipe expander can be held and rotated to adjust the front-to-back distance of the cutting wheel to facilitate clean cutting. Widely applicable: The tube reamer can be widely used for deburring in metal pipes and plastic pipes. And it usually used for air conditioner installation and vehicle repair.Widely applicable: The tube reamer can be widely used for deburring in metal pipes and plastic pipes. And it usually used for air conditioner installation and vehicle repair. Package included: User will get 3 tube reamers, which are ideal tool for deburring the edges of tubes. Working rang: About 5MM~38MM(3/16-inch to 1-1/4-inch).