High-Quality Material: Our tube expander drill bit is made of top-notch metal, hardened through a high-temperature process for enhanced durability. It's heat and wear-resistant, ensuring it won't easily break or deform.Compact Size : Unlike other copper pipe repair tools, our drill bit is easy to carry and store. Its compact design allows it to fit conveniently in your toolbox without taking up much space.Time-Saving: The drill bit works seamlessly with an electric drill, making copper pipe expansion swift and efficient. It saves time while delivering significant results.Versatile Use: Unlike other similar products, our tube expander drill bit not only expands the copper pipe, but also enhances the pipe mouth function.Suitable for most copper pipes.Wide Application: This tool is ideal for various repair scenarios including air conditioning repair, refrigerator repair, and copper pipe repair, making it a must-have for any toolbox. Description: Our air conditioner tube expander tool is a must-have for efficient and effective copper pipe expansion. Crafted from high-quality metal, this tool undergoes a high-temperature hardening process to ensure durability, heat and wear resistance. It's designed not to break or deform, guaranteeing safe usage. This tool works seamlessly with an electric drill for easy copper pipe expansion, offering high efficiency and fast results that save you time. Beyond expanding copper pipes, it also expands the pipe mouth function. It's suitable for most copper pipes and is ideal for air conditioning repair, refrigerator repair, and other copper pipe repair scenarios. Compared to other copper pipe flaring tools, our 5-in-1 drill bit stands out with its portability. It doesn't take up much space and can be easily carried around or stored in your toolbox. Item Name: Expander Drill Bit Material: Metal Features: High Durability, Rustproof, CompactDrill Bit Sizes: 1/4(6MM), 3/8(10MM), 1/2(12MM), 5/8(16MM), 3/4(19MM) Size Details: Total Length: 10cm/3.94" (Approx.) Notes: 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. Package Includes: 1 x Expander Drill Bit