HVAC Repairing Kit, Air Conditioner Copper Tube Expander Swaging Tool Drill Bit Set 

• This set features 6 different sizes of drill bits, including 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, and 7/8″, all with a 1/4″ hexagon handle. It’s an essential tool for air conditioner maintenance, offering 2 pieces of each model (12 pieces in total), ensuring you always have a backup in case of damage, avoiding delays in maintenance work.
• Made from ball bearing steel, the Swaging Tool Drill Bit is both practical and durable. It boasts high hardness, wear resistance, and a high elastic limit, making it a reliable helper in both work and daily life.
• Ideal for connecting air conditioner copper pipes, these bits efficiently expand soft copper pipes through rotation, enabling leak-proof connections. They work more effectively than round-nose reaming tools, especially when used with a drill or impact drill. (Note: Keep drill speed moderate).
• Designed for easy use by HVAC installers, this tool simplifies the process of expanding air conditioning copper pipes without the need for complex learning. Safety tip: Wear heat-resistant gloves, goggles, and other protective equipment during use. The bit’s curvature gently expands the copper tube to the desired inner diameter.
• More compact and portable compared to other copper pipe flaring tools, this drill bit set easily fits in a toolbox and is convenient to carry and store. If you have any questions, our professional customer service team is ready to assist!