Features [Main Function] After installing the air conditioner, use this crimper to expand two copper pipes and connect. [Transform Your Impact Driver] With standard shank, quickly turn your impact driver into a power crimper with this tool. [Efficient Pipe Crimping] This impact crimper could effortlessly, securely and efficiently crimp round metal pipes with ease. Material] Made of sturdy stainless steel material, this duct swaging tool has high strength, not easy to be broken. [Long Lasting] Stainless steel crimper is to corroson and rustproof, ensuring a long service life and stable performance. Specification Item Type: Impact Power Assisted Crimper Material: Stainless steel Color: Black Use: Impact power assisted crimper Package List 1 x Impact Power Assisted Crimper