M300 Tool Steel Filamet™

Overview

Create real tool-grade metal parts using any open-architecture FFF/FDM 3D printer—achieving wear resistance, hardness, and complex geometries in M300 tool steel previously requiring expensive machining or casting. With 85–88% M300 tool steel content, Filamet™ prints like PLA and sinters to fully dense metal.

Spools: 1.75mm and 2.85mm diameters in 0.5kg and 1kg weights

Works with virtually any open-architecture 3D printer—no proprietary hardware or specialized equipment required. Also compatible with 3D printing pens.

👉 Our list of Trusted 3D Printers – Click Here

👉 More information on printing – Click Here

After printing, your part can be fired in a furnace to become 100% metal . Sintered density achieves 90–95% of solid M300 tool steel.

👉 More information on debinding and sintering – Click Here

Important Note on Brown State Handling:

M300 Tool Steel parts specifically cannot be handled in their brown state. Extra care must be taken during the debinding phase. Refer to the debinding and sintering guide above for full instructions.

👉 Research Papers – Click Here

All print just like PLA on most open-architecture 3D printers.

Recycle empty spools with the spool buy-back program – Click Here

Working on a tooling, manufacturing, or advanced materials program?

Highlights

• Print with a 0.6mm hardened steel, standard flow nozzle
• Prints similar to PLA
• Minimal to no warping
• Ensure the filament feeds straight into the extruder
• Less hygroscopic than PLA Do not dry this filament—drying will degrade the binder
• Tool and die components, punches, and inserts
• Injection mold tooling and conformal-cooled inserts
• Wear-resistant functional metal parts and bushings
• Aerospace and automotive structural prototyping
• Functional metal prototypes requiring high hardness
• University and R&D research programs
• One-off and short-run manufacturing