8 Pcs Swaging Tool Drill Bit Set HVAC Repairing Set Air Conditioner Manual Copper Pipe Swage Tube Tool with Copper Pipe Cutter and Deburring Tool for Copper Aluminum and Thin Stainless Steel Tube
- ...are expanded by the rotation of the drill bit, so that the two copper pipes are connected without leakage. When used in combination with electric drill and impact drill, it works more efficiently than the round head reaming tool. (The drilling speed should not be too fast.) The drill bit is made of durable and wear-resistant bearing steel, which is not easy to break, wear-resistant and durable..