6PCS Copper Tube Expander Set – Triangle & Hex Shank Hole Enlarger for Aircon Pipe Repair

Features:1. These products are made of high quality steel material, durable for use.2. Easy to expand the tube, easy to use, complete specifications.3. High temperature quenching, sturdy and durable, and more labor-saving expansion.4. Expand the copper pipe to make the two copper pipes interconnected when the air conditioner is installed.5. It needs to be installed on hand electric drill. Specifications:Material: #45 SteelSize: 7/8(22.2mm),3/4(19mm),5/8(15.9mm),1/2(12.7mm),3/8(9.5mm),1/4(6.3mm)Total length: Appr. 45-60mmType of shank: Triangle or 1/4 Hex shank Package List:6 x Air Conditioner Copper Tube Swaging Expander Drill Bit ;