Not only is it hardened steel, but its been coated with a very hard and low-friction Diamond-Like Carbon (DLC) layer that allows printing of the most abrasive of materials at high temperatures. Capable of the normal filaments, but also engineering-class ones, including but not limited to: PLA, ABS, ASA, HIPS, PET, PETG, PP, TPU, TPE, PVA, Nylon, PC, PEEK, PEKK, PEI, PSU, PPSU, Including Carbon, Glass, and Glow-filled variants!

Tech Specs:

Mohs Hardness: 7.8

Max Printing Temperature: 450C

Thermal Conductivity: 26W/m*k

Nozzle Output Tolerance: +/- .01mm

Filament Path Roughness lower than Ra0.4 for consistent extrusion

Friction Coefficient of Coating: 0.03