Description: [Versatile 3 in 1 Drill Bit]: This innovative drill bit set is designed to accommodate 1/2 inch, 1/4 inch, and 1-inch water pipe, making it a versatile tool for various plumbing tasks. The 3 in 1 design ensures you have the right size for job [Precision Positioning]: Featuring a step drill bit with positioning capabilities, this tool allows for accurate drilling and reaming of PPR pipe. It simplifies the process of pipe repair and expansion by combining two functions into 1 efficient tool [Stable Hexagonal Handle]: Equipped with a 6.35mm hex handle, this drill bit offers stable clamping and easy installation or removal from your electric drill (not included). The hex design ensures a secure fit during handling [Carbon Steel Construction]: Made from carbon steel, this drill bit set is built to withstand rigorous use in plumbing applications. Its strong construction ensures long term performance and reliability [Ideal for Plumbers]: Suited for professional plumbers or DIY enthusiasts, this pipe reaming and drilling bit set is an essential addition to your toolkit when working on water pipe installations or repairs Specification: Material: Carbon Steel Size Chart: Length: 7.4cm/2.91inch Package Includes: 1x Pipe Expanding Tool Note: Please allow slightly errors due to manual measurement and different monitors.