Gonnely Swaging Tool Drill Bit Set,6Pcs 1/4 Inch Hex Shank Pipe Expander Drill Bits Set,Professional Manual Copper Pipe Hvac Tools for Air Conditioner(1/4 3/8 1/2 5/8 3/4 7/8 Bits)

• ⭐【Premium Material】 Made of high-quality bearing steel, this swaging tool drill bit set has a high elastic limit and contact fatigue strength, ensuring long-term use without deformation. Suitable for both hard and soft copper pipes, providing standardized and easy-to-braze swaging.
• ⭐【Durable and Stable】 These hvac tools are made of high-quality bearing steel, ensuring high and uniform hardness, wear resistance, and a long lifespan. Offers excellent performance and durability.
• ⭐【Perfect Connection】 Perfect for expanding copper pipes during air conditioner installation, ensuring tight connections, and maintaining ductility to prevent cracks and leakage. Use the pipe expander set to widen the copper pipe during air conditioner installation, ensuring accurate and seamless connection between two pipes.
• ⭐【Easy to Use】 Compact in size, allowing you to carry the flaring tool wherever you need. Simply attach it to your hand electric drill for convenient and efficient flaring and tube expansion.
• ⭐【Swaging Tool Drill Bit Set】 Includes 6 different sizes (1/4'', 3/8'', 1/2'', 5/8'', 3/4'', 7/8'') with a 1/4 inch hex shank for easy installation on hand electric drills.

Specifications: Material: 45# Steel Height: approx.45mm/1.77in; 50mm/1.97in; 55mm/2.16in Size: 7/8（22.2mm）,3/4（19mm）,5/8（15.9mm）,1/2（12.7mm）,3/8（9.5mm）,1/4（6.3mm) Color: As pictures shown Quantity: 6pcs/set Features: Quality: The flare/swage will keep the coopers' malleability, which will ensure better couplings overall; the process also protects the tube from cracking. Material: Made of ball bearing steel, it is practical and durable. The flares will always have the same size and will fit perfectly; The swages present a perfect depth and a tight fitting, that will make the brazing easier, reducing the fatigue stress over the coupling area. Innovation: Revolutionizing system for molding tubes using heat by friction way more surface of contact between the flare and the Valve. Usage: Air conditioning installation, open copper tube, so that two copper tube mutual link.(To be installed on hand electric drill) Replace: You can use it to replace the old or brocken one. Package Includes: 6pcs x Pipe Expander Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!