5-piece tube expander set with hexagonal handle, hose crimping tips, copper tube extender, duct boring tool, air conditioner maintenance parts, 3/4in, 5/8in, 1/2in, 3/

Compatibility: The extension set contains 5 extensions of different sizes, such as 3/4", 5/8", 1/2", 3/8", and 1/4", which can meet various copper pipe expansion requirements.

Multi-purpose: The copper pipe crimping drill bit uses a standard 6.35 mm hex shank, which can be installed on a regular hex shank electric drill. It is suitable for HVAC installers to extend air conditioning copper pipe.

EASY TO USE: The copper pipe expansion device can expand copper pipe during air conditioner installation, so that the two copper pipes can be connected precisely and perfectly.

Easy to carry: The catheter reaming tool is small and lightweight, so it can be carried or put in a toolbox; it doesn't take up much space. Easy to carry and store.

HIGH-QUALITY MATERIAL: The hexagonal handle flarer is made of high-quality, high-carbon steel, which has high hardness and wear resistance, is not easy to break, durable, and has a long service life.