7PCS HVAC Repairing Set, Hakkin Air Conditioner Copper Tube Expander with 5 in 1 Swaging Tool Drill Bit, Hex Shank Manual Pipe Swage Expander, Flaring Tool Size 1/4”, 3/8”,1/2”,5/8”,3/4”,7/8”

About this item 6 Pipe Sizes 5 in 1 Bit Combinations – 6 different sizes of drill bits, including 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 7/8″, 1/4″ and 1pcs 5 in 1 flaring tool. These expanders are designed with hexagonal shank and are suitable for installation on various manual electric drills. Our pipe expansion tool are an essential accessory for servicing air conditioners Function – This swage tool can expand the copper pipe, so that you can link the two copper pipes to each other. It is great for air conditioning repairs. But please note that the drill speed should not be too fast.This tool maintains the ductility of copper aluminum during die forging to avoid cracks and leakage Small Size and High Efficiency – Compared with traditional manual copper pipe swaging tool hvac, our electric boring drill bits are small in size, easy to carry and easier to use, no need to vigorously expand the copper pipe hole, with the electric drill with our drill bits, you can easily expand the hole diameter. The force of the electric drill bits are uniform, which will not cause the copper pipe to break, or not round and smooth High Quality Bearing Steel – The swaging tool drill bits are made of durable and wear-resistant bearing steel which help prevent the boring drill bits from rusting, and has a long service life 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