5Piece FLARING TOOL DRILL BIT SET. 5Piece set includes sizes 1/4'+5/16', 3/8'+1/2', 5/8', 3/4', 7/8'. These bits are designed for making precise flares on copper tubing for reliable connections in HVAC and plumbing applications. COPPER PIPE SWAGING TOOL BIT. The copper pipe swaging drill bit is simple and easy to use. When installing air conditioning, it expands the copper tube to form a mutual link between two copper tubes. To be installed on a hand electric drill. SWAGING TOOLS MATERIAL. Made of bearing steel material, this set provides and uniform hardness, wear resistance, and a elastic limit for durable, longlasting performance. EXPANDED COPPER PIPE. The temperature method preserves malleability, reducing the risk of cracks and leaks. Ideal for installers, this method is much faster than conventional swaging methods and delivers dependable results in the field. Key benefits Fast and reliable flaring and swaging with a hand electric drill, improving installation speed on copper tubing. Durable bearing steel construction offers hardness, wear resistance, and long service life. temperature expansion method preserves ductility to prevent leaks and cracks, enhancing seal integrity. Clear compatibility with standard hand drills and common copper tubing sizes used in HVAC and plumbing. Use scenarios HVAC refrigerant line flare connections during air conditioning installation, enabling secure, leak joints. Onsite copper tube splicing and linking in refrigeration or plumbing projects where two tubes must be joined with a swaged connection. Retrofit or maintenance work at construction sites, offices, or homes where quick, fieldaccurate flaring and swaging are required using a portable hand drill.