Swages 6 Sizes of Tubing: Our 6-in-1 HVAC Repair Tool is capable of swaging 6 different sizes of tubing, including 6，8，10，12,16,19。. 1 pipe expander drill bit. Material: Crafted from high-quality bearing steel, our tool undergoes high-temperature quenching and hardening, its durability and resistance to breakage and wear.
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