Micro Swiss CM2™ Nozzle is an ideal nozzle for all applications. Core of the nozzle is made of high-temperature Copper Chromium Zirconium and plated with an Electroless Nickel Plating. This special alloy retains its strength at much higher temperatures compared to a regular copper alloy. The tip of the nozzle is made of M2 Hardened High Speed Steel and coated with a special nonstick nano coating. Micro Swiss CM2™ Nozzle Features: Copper Chromium Zirconium body Plated with an Electroless Nickel Plating M2 Hardened High Speed Steel insert Plated with a Electroless Nickel Plating Coated with nonstick nano WS2 coating. Coefficient of friction: 0.035 Heat-treated hardness: 68 HRC Fits FlowTech™ Hotend for Creality K1 / K1 Max / K1C (M3101) FlowTech™ Hotend for Creality CR-10 SE (M3102) FlowTech™ Hotend for Creality Ender 3 V3 KE (M3103) FlowTech™ Hotend for Creality Ender 3 V3 SE (M3105) FlowTech™ Hotend for Creality Ender 3 V3 (M3106) FlowTech™ Hotend for Elegoo Neptune 4 / 4 Pro (M3107) FlowTech™ Hotend for Elegoo Neptune 4 Plus/ 4 Max (M3108) FlowTech™ Hotend for Sovol SV08 (M3110) FlowTech™ Hotend for Bambu Lab X1 and P1 Series (M3119)