The Alphacool deburring tool has three sharp edges, with steel blades to deburr cut HardTube from the inside and remove rough sections. On the other side of the tool are the steel blades to deburr the cut outside edge of the HardTube. Making a perfect seal with your connectors. Technical Details: Dimensions (HxD): 41 x 46,3mm Material: Plastic Color: red Scope of delivery: 1x Alphacool Acrylic Tubing Pipe Reamer - Light Version