Feature:1. Wide Application: These PPR lifting drill bits are specially designed for PPR plastic products, making them the ideal choice for drilling and enlarging tasks.2. Robust Structure: Made of industrial grade high speed steel with a ti coating, these drill bits are strong, robust, and long lasting, allowing for repeated use.3. Incisive Cutting Edge: The incisive cutting edging of these drill bits ensures high processing accuracy, resulting in clean and smoothly boreholes and increased efficiency.4. Accurate Engineering Design: All drill bits feature a 90 degree cutting edge for incisive and accurate countersinking, guaranteeing clean and accurate processing.5. Effortless Performance: With their advanced design and incisive cutting edging, these drill bits make drilling and enlarging tasks effortless and efficient, saving you time and effort in your projects.Specification:Item Type: Pipe Reaming Drill BitsMaterial: High Speed SteelShank Diameter: 1/4 inch Hex ShankFlute Diameter: 32/25/20.Package List:3 x Pipe Reamer