M300 Tool Steel Filamet™

Create real metal parts using any open-architecture FFF/FDM 3D printer—or even a 3D printing pen.

Estimated back in stock - Mar 2026

Available Formats:
Spools: 1.75mm and 2.85mm diameters in 0.5kg and 1kg weights
Pellets: 1kg jars

Filament Density:
3.50g/cc – 3.65g/cc

Metal Content:
85.0% – 88.0% M300 tool steel

High Compatibility:
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

Easy Printing Experience:

• Print with a 0.6mm hardened steel 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

👉 More information on printing – Click Here

Fully Sinterable:
After printing, your part can be fired in a furnace to become 100% metal.

👉 Debinding & Sintering Instructions – Click Here

Applications:

• Prototyping

• Functional metal parts

• Wear resistant parts

• Aerospace and automotive research

• One-off and short-run manufacturing

• Reducing or eliminating tooling and machining costs

Additional Links:

👉 SDS and TDS – Click Here
👉 Research Papers – Click Here

Explore More Metal Filaments:

• Aluminum Filamet™

• Rapid 3DShield Tungsten Filament

• Copper Filamet™

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

Large orders may be subject to longer lead times. Contact us for more accurate lead times.