Advanced Copper Tubing Expander: Tackle Complex Hvacs And Ac Repairs With Ease Using Our Advanced Copper Pipe Expanding Tools, Ensuring A Professional Finish. Tube Expander Drill Bit: Expand Copper Tubing Precisely And Efficiently With Our Drill Bit Set, Designed Specifically For Accurate And Safe Expansion. Bearing Steel Quality: Our Tools Are Manufactured From High-Grade Bearing Steel, Providing Exceptional Durability And Resistance To Wear And Tear. Hex Shank Efficiency: The 1/4" Hex Shank Design Facilitates Swift Attachment To Your Drill Driver, Streamlining Your Repair Process. High-Qality Materials: Crafted From The Finest Materials, This Set Offers Optimal Performance And Longevity, Making It A Wise Investment For Your Toolkit. Upgrade Your Hvacs And Ac Repair Capabilities With Our Advanced Copper Tubing Expander Set. Engineered To Meet The Highest Standards, These Tools Are Tailored For Precision And Reliability. The Bearing Steel Composition Offers Unmatched Toughness, Suitable For The Most Challenging Jobs. The Hex Shank Design Promotes Quick And Easy Tool Switches, Optimizing Your Workflow. Invest In Quality, Experience The Difference With Our High-Quality Materials That Ensure Your Tools Will Serve You Well For Years To Come. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.