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Uncoated carbide router bit with O-flute upcut spiral

Onsrud

Onsrud 52-700 Router Bit 1/4 1 1/4 3

SKU CH-BS4F-NXEZF MPN 52-700

Solid carbide router bit with an O-flute upcut spiral designed for foam, soft plastic and wood

  • TypeRouters
  • MaterialCarbide
  • Color/FinishUncoated
  • Solid carbide construction resists wear
  • Upcut O-flute clears chips from soft plastics
  • 1/4 inch cutter diameter suits fine detail work
  • Designed for foam, soft plastic and wood
  • Uncoated finish reduces friction on non-ferrous materials

Cutting capability

The Onsrud 52-700 is a solid carbide router bit designed for clean cuts in foam, soft plastic and wood. Its spiral O-flute upcut geometry evacuates chips upward while shearing the material for a smooth finish. The tool arrives new and uncoated, ready for immediate use in compatible routers.

Material suitability

This bit suits fabricators and woodworkers who need a single-flute cutter for low-density substrates. It is not intended for users who require multi-flute tools for harder plastics, metals or abrasive composites where a different geometry would be necessary.

Cutter diameter

The cutting diameter is 1/4 in, which determines the minimum internal radius and the width of the slot this bit can produce in a single pass. Verify that your router collet accepts this shank size before ordering.

Highlights

  • Solid carbide construction resists wear
  • Upcut O-flute clears chips from soft plastics
  • 1/4 inch cutter diameter suits fine detail work
  • Designed for foam, soft plastic and wood
  • Uncoated finish reduces friction on non-ferrous materials

Specifications

TypeRouters
BrandOnsrud
Model52-700
MaterialCarbide
Color/FinishUncoated

Questions about this item

What router collet size does the 1/4 in cutter diameter of the Onsrud 52-700 require?

The 1/4 in cutter diameter matches a standard 1/4 in router collet, so the bit fits directly without an adapter.

Will the uncoated carbide Onsrud 52-700 dull faster than coated bits when cutting abrasive composites?

Uncoated carbide wears faster on abrasive material, but the O-flute upcut geometry clears chips efficiently to reduce heat and extend edge life.

How can I confirm the upcut spiral is evacuating chips properly during a cut?

Watch for a steady stream of chips ejected upward from the groove; if chips pack the flute, reduce feed rate or increase spindle speed.

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