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Small carbide router bit with upcut spiral flute and 1/4 inch shank

Onsrud

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

SKU CH-5K2J-64WWP MPN 63-701

Carbide upcut O-flute router bit cuts hard plastic with a 1/16 inch cutter diameter

  • TypeHole, Drill, Bore & Wire Gauges
  • MaterialCarbide
  • Carbide construction resists wear for longer tool life
  • Upcut O-flute design clears chips efficiently in hard plastics
  • 1/16 inch cutter diameter suits fine-detail routing work
  • Solid carbide body maintains rigidity during high-speed operation
  • California Proposition 65 warning informs users of chemical exposure risk

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.

Highlights

  • Carbide construction resists wear for longer tool life
  • Upcut O-flute design clears chips efficiently in hard plastics
  • 1/16 inch cutter diameter suits fine-detail routing work
  • Solid carbide body maintains rigidity during high-speed operation
  • California Proposition 65 warning informs users of chemical exposure risk

Specifications

BrandOnsrud
Model63-701
TypeHole, Drill, Bore & Wire Gauges
MaterialCarbide

Questions about this item

Should I choose the 1/16 in cutter diameter for my project?

The 1/16 in cutter diameter suits fine-detail routing in hard plastic where a small upcut spiral removes chips cleanly.

How does the upcut O-flute design perform in a real machine?

The upcut spiral pulls chips upward and the O-flute geometry reduces heat, giving a smooth finish in hard plastic.

What shank size does the 1/4 specification indicate and what does it limit?

The 1/4 in shank fits standard 1/4 in collets, limiting use to routers that accept that shank size.

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