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 1/4"
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LMT Onsrud

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.