6 different sizes of drill bits, including 1/4 inch, 3/8 inch, 1/2 inch, 5/8 inch, 3/4 inch, and 7/8 inch, with 1/4 inch hexagon handle. This pipe expansion tool is an essential accessory for servicing air conditioners. Made of 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 suitable for HVAC servicing and installations. Ergonomic Design: Features a quick-release bit holder with color-coded bits for easy identification. Ideal for DIY enthusiasts, it helps reduce workspace clutter and improves tool organization. Enhanced Compatibility: Compatible with 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 offers added convenience, especially in elevated work environments. Safe and Efficient Operation: Designed for reliable performance, this tool set helps create secure connections for copper pipes with minimal effort. Always wear appropriate protective gear to avoid potential hazards during use. Comprehensive Pro Package: This complete tool kit simplifies HVAC and plumbing tasks and includes six quick-release bit holders and a carabiner. A practical gift for tradesmen and homeowners. Color: As shown in photo Material: Metal Package Contents: 6x keychain extension rods 6x pipe expanders (1/4 inch, 3/8 inch, 1/2 inch, 5/8 inch, 3/4 inch, 7/8 inch) Only the items listed above are included; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.