[6 Pipe Sizes] 6 different sizes of drill bits, including 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1/4" hexagon handle. Our pipe expansion tool are an essential accessory for servicing air conditioners. [High Quality Material] Swaging Tool Drill Bit made of ball bearing steel, it is practical and durable. It has high and uniform hardness and wear resistance, and high elastic limit, your good helper for work and life. [Working Principle] When connecting the copper pipes of the air conditioner, the soft copper pipes are expanded by the rotation of the drill bit, so that the two copper pipes can be connected in a leak-proof manner. Works more efficiently than round nose reaming tools when combination with drill and impact drill. (The drill speed should not be too fast) [Use Easier] It is very suitable for HVAC installers to perform air conditioning copper pipe expansion operations without complicated learning. (Please wear anti-scalding gloves, goggles and other safety protective equipment during operation.) The curvature of the flare allows the drill to gently expand the copper tube to the specified inner diameter. [Carry and Store Easier] Compared with other copper pipe flaring tools, our drill bit set can be carried with you or placed in the tool box, it does not take up the volume, and it is easy to carry and store. Tip：If you have any questions, please contact us, we will give you the most professional service! HVAC Repairing Set Air Conditioner Copper Tube Expander Swaging Tool Manual Copper Pipe Swage Too Expander Drill Bit Soft Copper tubing Tool bit with 1/4''， 3/8''，1/2''， 5/8''，3/4''，7/8''Bits hvac tools hvac tools clearance swaging tool hvac flaring tool hvac pipe expander hvac flaring tool tube expander pipe expander tool 3/8 drill bit 7/8 drill bit swage tool flaring tool drill bit set swag tool swaging tool hvac plumping pipe expander copper press tool air conditioner copper pipe plastic pipe tube expander plumbing tools copper tube fittings hydraulic pipe crimping tool copper tools repairing tool hvac tool copper pipe tube expander propress tool for copper pipe pro press tool for copper pipe swedge bits 1-1/2” swaging tool copper expander swaging kit hvac repairing kit swaging spin set fieldpiece gauges hvac copper pipe expander metal pipe expander copper tube expander navac gauges copper key tool mining drill pipe swager tool hvac plumbing tool 1-1/8 copper tubing copper pipe flaring tool air conditioner copper tube expander hvac tool set flaring & swaging tools 1in pipe expander hvac tube expander air conditioner copper tube swaging tool with expander drill bit pipe tube expander bench top swaging tool flaring tool duct knife hvac copper pipe tools drill swage kit copper bender hvac tube expander set hexagonal handle tube expander copper swedge tube pipe tubing beader tool eccentric tube expander swedge tool hvac manual drill drill with drill bits expander 870 pipe winder copper pipe swage tool drill bit flaring bit set laguna pipe expander 3-pieces pipe expander tool set conditioner copper pipe expander pipe expanders copper pipe reamer small drill bit manual hvac repairing kit 5in1 hvac swaging tool swedging tool hvac pipe stretcher tool copper pipe taping machine air conditioner plumbing tools copper tube exhaust expander manual pipe expander expansion tube 5pcs hvac tool expander tube pipe beader tool 1 1/4 pipe expander tools spin flare tool tubing expander expander wing copper flaring tool drill flaring tool drill bits tools copper pipe expander tool flaring tool bit set exhaust pipe expander tool pipe flaring tool bellow expander drill pipe air conditioner tube expander swaging tool impact swedge kit flaring bit air conditioner tools hvac swaging bit set spin tool copper pipe expander tube expander tool spin bit copper tube expansion tube reamer copper tube flasher expander tool 12pcs havc swaging tool hvac tools tube expander tool manual tube expander 1" tubing expander copper crimping tool plumbing drill bit tool copper tube tool swaging tool kit hvac pipe expander expander swage tool kit tube expander hvac hvac repairing set air tool set the standard hvac tools tool list for hvac hvac check tools expansor de tubos de cobre benchtop swaging tool havcr tools swaging tool drill bit set swaging tools waging tool drill bit set, soft copper tube expansion copper tube fittings crimping tool soft copper expander tubing tool swedge tool 5-hole copper pipe flanging pipe expander hole reamer flaring tool for copper tubing copper tubing 7/8 soft copper row dip hvac repairing tools sweger setet