Diamond sharpening steel professional knife sharpener diamond coating bar

General DescriptionThis set of 6 crimp drill bits is designed for crimping copper pipes, ideal for HVAC systems. Made of bearing steel, this tool provides high hardness and wear resistance, ensuring durable and efficient use.It helps expand copper pipe to create strong connections between two pipes.Technical SpecificationsMaterial: Bearing SteelShank Type: 7mm Triangle ShankDrill Size: 7/8" (22.2mm), 3/4" (19mm), 5/8" (15.9mm), 1/2" (12.7mm), 3/8" (9.5mm), 1/4" (6.3 mm)Drill height: 1/4\": 4.5 cm, 3/8\": 4.5 cm, 1/2\": 5 cm, 5/8\": 5 cm, 3/4\": 5.5 cm, 7/8\": 5.5 cmInstallationEasy to install, this tool attaches to a manual electric drill, making it accessible to installers, whether they whether beginners or experienced.UsageUsed for crimping copper pipes, this tool is essential when installing air conditioning systems, allowing reliable connections between pipes to be made.