Onsrud 63-701 1/16 in Carbide Upcut O-Flute Router Bit

1/16 in Carbide Upcut Router Bit

The Onsrud 63-701 is a solid carbide router bit with a 1/16 in cutter diameter and an upcut O-flute spiral. It is designed for machining hard plastic materials where clean chip evacuation is required. CNC operators and fabricators working with acrylic, polycarbonate or similar plastics will find this geometry suited to their routing tasks.

Upcut O-Flute Geometry Limits

The upcut spiral pulls chips upward and out of the cut, which helps prevent re-cutting and melting in plastic. This action can lift thin or poorly clamped workpieces, so secure hold-down is necessary. The O-flute design reduces heat buildup, yet the small 1/16 in diameter limits depth per pass and overall material removal rate compared with larger tooling.

1/16 in Cutter Diameter Decides Fit

The 1/16 in cutter diameter is the single specification that determines whether this bit matches the required feature size. If the design calls for a larger groove, hole or profile, this tool cannot produce it in a single pass. Buyers needing wider cuts or heavier stock removal must select a different diameter.