1. Alloy Steel Construction Made from alloy tool steel, this manual tube expander offers exceptional hardness, reliability, and durability. It withstands frequent use without wear, ensuring longterm performance for your refrigeration needs. 2. Versatility with Multiple Size Options This expander kit includes 7 different sizes (6mm, 8mm, 10mm, 12mm, 16mm, 19mm, 22mm) to handle various tube diameters. The comprehensive set provides flexibility for different projects while remaining compact and portable for easy transport. 3. Ergonomic Design for Comfortable Use Featuring a specially designed handle that fits naturally in the hand, this tool minimizes shaking during operation. The comfortable grip reduces hand fatigue, enabling precise control and extended working periods. 4. IndustryStandard Quality Assurance Manufactured to meet strict industry specifications, this tube expander undergoes rigorous quality control. Every component adheres to professional standards, ensuring consistent performance that exceeds customer expectations.