1/2 inch x 100 ft. Soft Copper Tubing - Refrigeration ACR Tubing | eBay
12Pcs HVAC Repairing Kit, Air Conditioner Copper Tube Expander Swaging Tool Manual Copper Pipe Swage Too Expander Boring Drill Bit Soft Copper tubing 1/ 4'', 3/8'',1/2'',5/8'',3/4'',7/8'' Bits Set - Amazon.com
Everbilt 1/4 in. x 10 ft. Soft Copper Refrigeration Coil Tubing 1/4 R 10RE - The Home Depot
Yu&Yang HVAC Repairing Set Air Conditioner Copper Tube Expander Swaging Tool Manual Copper Pipe Swage Too Expander Drill Bit Soft Copper tubing Tool bit with 1/4'', 3/8'',1/2'', 5/8'',3/4'',7/8''Bits - Amazon.com
Everbilt 1/4 in. x 10 ft. Soft Copper Refrigeration Coil Tubing 1/4 R 10RE - The Home Depot