Feature:1. Made of highquality stainless steel material, strong and durable, wearresistant and rustresistant.2. With multiple specifications, it can meet the needs of various work scenarios.3. Ergonomics, comfortable hand feeling, simple operation, even beginners can get started quickly.4. Suitable for scenes such as mechanical processing, pipeline engineering, airconditioning pipeline, etc.5. Hex triangular handle tube expander is used to expand the copper tube and connect the two copper tubes to each otherSpecification:Item Type: Swaging Tool Drill Bit SetMaterial: Stainless SteelHex Handle Specifications: Approx. 6.35mm / 0.3inSize: 7/8 (22.2mm) 3/4 (19mm) 5/8 (15.9mm) 1/2 (12.7mm) 3/8 (9.5mm) 1/4 (6.3mm)Purpose: Flaring and Expansion of Copper PipeApplicable Scenarios: Mechanical Processing, Pipeline Engineering, Air-Conditioning Pipelines.Package List:6 x ReamerNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.