Feature:
1. expander set used to preserve the ductility of copper or aluminum during die forging to avoid cracks and leakage.
2. The set contains 6 expanders of different sizes, which can meet the needs of daily maintenance.
3. The set is used to expand the copper pipe to make the two copper pipes interconnected when the air conditioner is installed.
4. With excellent workmanship, these drill bits are easy to install and has long service life.
5. The forging stopper will provide a large swaging depth to achieve a fit.

Specification:
Item Type: Tube Expander Set
Material: 45# steel
Reaming Specifications:
7/8 inch, 3/4 inch, 5/8 inch, 1/2 inch, 3/8 inch, 1/4 inch
Purpose: After installing the air conditioner, expand the copper pipe to connect the two copper pipes.

Package List:
6 x Tube Expander Set

Note:
expander set must be installed on a manual electric drill.