PACKAGE ACCESSORIES - 6 different sizes of drill bits, including 1/4", 3/8", 1/2", 5/8", 3/4", 7/8"; 1PC 5 in 1 Copper Tube Expander; 1PC Tube or Pipe Cutter; 1PC Deburring Tool with 10PCS Rotary Deburr Blades; A pair of tool gloves DRILL BITS＆MINI COPPER PIPE TUBING CUTTER＆DEBURRING TOOL - FULLY EQUIPPED TOOLS - When the air conditioner is installed, drill bits can expand the copper pipe, so you can link the two copper pipes to each other; Mini Cutter can cut copper tube, steel pipe, stainless steel tubing, aluminium piping PVC and iron. But we do not recommend cutting PVC pipe as it’s a lot more difficult to cut. Deburring tool removes burrs from pipe edges SUPERIOR MATERIAL - Made of high quality 40CR ball bearing steel，Durable, heat-resistant and wear-resistant, not easy to break,use it with confidence and safety FUNCTION - Complete forging tools, easy to handle, air conditioner installation, open the copper pipe, let the two copper pipes connect with each other. The ductility of the copper is retained during the forming process for hermeticity. Work efficiently and make your daily work more convenient EXCELLENT PERFORMANCE - Hakkin HVAC drill bit is a necessary accessory for repairing air conditioners. When the air conditioner is installed, the soft copper pipes are expanded by the rotation of the drill bit, so that the two copper pipes are connected without leakage. When When combined with electric drill and impact drill, it works more efficiently than the round-head reaming tool Hakkin HVAC Repairing Tools with 5 in 1 Conditioner Copper Tube Expander with Copper Pipe Cutter, Deburring Tool and Gloves 1.PACKAGE INCLUDED: 6 different sizes of drill bits, including 1/4", 3/8", 1/2", 5/8", 3/4", 7/8"; 1PC 5 in 1 Copper Tube Expander; 1PC Tube or Pipe Cutter; 1PC Deburring Tool with 10PCS Rotary Deburr Blades; A pair of tool gloves 2.FUNCTION: Complete forging tools, easy to handle, air conditioner installation, open the copper pipe, let the two copper pipes connect with each other. The ductility of the copper is retained during the forming process for hermeticity. Work efficiently and make your daily work more convenient. (Please wear safety precautions). 3.CUSTOMER-CENTRIC: We prioritize customer satisfaction and ensure our product meets the highest standards of quality and performance. Our HVAC Repairing Tools is designed to simplify your life and make your DIY projects more efficient. Experience the difference of our reliable and durable tools that are built to last.