Feature:1. EASY TO USE: This printer accessories is made of high strength metal, which for durability and long service life2. 303 STAINLESS STEEL: This is printer heatbreak tube, which adopts the 303 stainless steel for efficient heat transfer3. FINE FINISHING: This is 3D printer heatbreak tube, with the CNC finishing, which is high quality, easy to install4. BASIC SPECIFICATIONS: The diameter of heatbreak tube is 7mm, the central aperture is 4.2mm, and the total length is 27mm5. AVAILABLE PRINTHEADS: Printer accessory has excellent performance, the printhead used for MK8 CR8 CR10Specification:Item Type: Heatbreak TubeMaterial: 303 Stainless SteelUse Nozzle: For MK8 CR8 CR10Diameter: Approx. 7mm / 0.27inCenter Aperture: Approx. 4.2mm / 0.16inSurface Technology: Surface OxidationMachining Accuracy: +0.03Total Length: Approx. 27mm / 1.06inThreaded Hole: M6Tube Installation: Feed Pipe in Line.Package List:2 x Heatbreak Tube