SpeTool 3mm Single Flute Upcut Spiral
End Mill Upcut Spiral

SpeTool 3mm Single Flute Upcut Spiral

SpeTool

$7.99

Overview

The 3mm single flute upcut is popular on entry-level CNC machines like the 3018 series. The smaller diameter is well-suited for the lower spindle power of these machines while still being useful for signs, small projects, and PCB work. A staple in the toolbox of budget CNC owners.

Best for

Small-diameter cutting on hobby machines, especially 3018-class CNC routers.

Specifications

Shank Diameter

1/8"

Cutting Diameter

3mm

Flute Count

1

Material

Solid Carbide

Coating

Uncoated

Type

Upcut Spiral

Material Compatibility

Wood Plywood MDF Acrylic Foam

Not rated for aluminum. Use a ZrN or DLC coated single-flute end mill for aluminum cutting.

Pros

  • Perfect for low-power machines
  • Well-suited for 3018-class CNCs
  • Affordable entry point
  • Good for small projects

Cons

  • Very small - limited material removal
  • Fragile in harder materials
  • Short cutting length
  • Not for large projects