Spiral 'O' Flute CNC Bits for Plastic & Wood

O-flute (single-flute) spiral bits for plastic and wood, available in upcut and downcut geometries. The single-flute design clears chips faster than multi-flute bits, which matters most on softer plastics like acrylic where heat buildup from...

Home Spiral 'O' Flute CNC Bits for Plastic & Wood O-Flute
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$16.93
LMT Onsrud 63-750 Series – Solid Carbide Single-Flute Upcut O-Flute for Soft Plastics
LMT Onsrud 63-750 Series – Solid Carbide Single-Flute Upcut O-Flute for Soft Plastics
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$73.85

LMT Onsrud

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$23.23
Amana Tool 51418 SC Spiral O Single Flute, Plastic
Amana Tool 51418 SC Spiral O Single Flute, Plastic
$104.27 | $127.50

Amana Tool

O-flute (single-flute) spiral bits for plastic and wood, available in upcut and downcut geometries. The single-flute design clears chips faster than multi-flute bits, which matters most on softer plastics like acrylic where heat buildup from trapped chips causes melting at the cut edge rather than a clean line.

For acrylic specifically, a light finish pass (roughly .06") after the main cut typically cleans up edge quality without needing to polish or flame-finish afterward.