6 different sizes of drill bits, including 1/4inch, 3/8inch, 1/2inch, 5/8inch, 3/4inch, 7/8inch, 1/4inch hexagon handle. Our pipe expansion tool are an essential accessory for servicing air conditioners. Metal for long-lasting performance. Robust Material: Crafted from Metal, the swaging tool drill bit ensures durability and resistance against wear and tear. Its uniform hardness aids in an efficient swaging process, making it indispensable for HVAC servicing and installations. Ergonomic Design: Featuring a quick-release bit holder, our swaging set promotes ease of use with color-coded bits for swift identification. Ideal for professionals and DIY enthusiasts, it reduces workspace clutter and enhances tool organization. Enhanced Compatibility: Suitable for most 1/4 inch hex shank tools, this 12-piece set includes versatile adapters that fit a range of drills and drivers. The keychain bit holder ensures convenience for high-altitude operations, expanding its utility across varying conditions. Safe and Efficient Operation: Designed for a working experience, this tool set ensures a leak-proof connection of copper pipes without extensive efforts. Remember to wear protective gear to safeguard against potential hazards during operation. Comprehensive Pro Package: This extensive tool kit not only simplifies HVAC and plumbing tasks but also comes with six quick-release bit holders and a carabiner. It's an excellent gift for tradesmen and homeowners alike, complete with a satisfaction . Colour:Photo Color Material:Metal Package Contents: 6x keychain extension rods 6x pipe expanders (1/4inch, 3/8inch, 1/2inch, 5/8inch, 3/4inch, 7/8inch) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.