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: Type of : Triangle or 1/4 Hex Material: steel colour: As shown Package Contents: 1 x Hexagon handle expander set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.