Product Name: Vacuum Brazed Diamond Metal Cutting Disc, Diamond Cut-off Wheel Blade Specification: Diameter 4.5"/115mm, Bore 22.23mm/ 7/8" ; Quantity: 3pcs Feature: 1. For Cutting steel tube, iron rebar (Less than dia 25mm), angle steel 2. Much safer than abrasive cut-off wheel, no risk of break of disc 3. No dust and less spark when cutting, healthy for operater and less pollution 4. More efficient than regular abrasive disc 5. Much longer working life (more than 30pcs abrasive wheel) ================THE END================