🔧 Elevate Your HVAC Game with Precision Tools! Crafted from wear-resistant bearing steel for durability. Includes 6 essential sizes for all your copper tubing needs. Master HVAC installations with ease! Easily portable for on-the-go repairs and installations. Simple to use, perfect for both pros and DIY enthusiasts. Multiple sizes 6-piece set Durable bearing steel This HVAC Repairing Set includes a manual pipe swage tool and drill bits in six different sizes (1/4'', 3/8'', 1/2'', 5/8'', 3/4'', 7/8'') made from durable bearing steel, designed for easy use in expanding copper pipes for air conditioning installations.