Feature:1. [PPR Lifting Bit Set] This set includes three PPR lifting drill bits with blade diameters of 1519mm, 18x24mm, and 2431mm. With 1/4 inch hex shank, compatible with most power tools.2. [Accurate Engineering] All bit tips are angled at 90 degrees, allowing for sharply and accurate countersinking, ensuring a clean and accurate finish.3. [Sturdy Construction] Made from industrial grade high carbon steel with ti coating, these drill bits are robust and offer a long service life, providing durability for repeated use.4. [Sharply Blade Edge] The sharply cutting edges of these drill bits deliver high processing accuracy, resulting in clean and smoothly boreholes, enhancing efficiency.5. [Versatile Applications] Specifically designed for materials such as PPR plastic products, these PPR lifting drill bits are ideal for hole opening and expanding tasks.Specification:Item Type: PPR Lifting Drill BitMaterial: High Speed SteelFeature: High Hardness, Not Easy to WearSpecification: #20, #25, #32Blade Diameter: 15-19mm, 18x24mm, 24-31mmShank Diameter: 1/4 Inch.Package List:3 x PPR Lifting Drill Bit