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Solid carbide upcut router bit, 1/4 inch cutter diameter, spiral flutes

Onsrud

Onsrud 52-287 Carbide Upcut Routing End Mill Hand Tool

SKU CH-NC8Y-2XX20 MPN 52-287

Solid carbide upcut routing end mill cuts MDF and wood with a spiral flute for efficient chip removal

  • Product typeHole, Drill, Bore & Wire Gauges
  • Main materialCarbide
  • Carbide construction resists wear for longer tool life
  • Upcut spiral clears chips efficiently from the cut
  • 1/4 inch cutter diameter suits precise routing tasks
  • Designed for MDF and wood material applications
  • Onsrud brand delivers professional-grade hand-tool reliability

Carbide Upcut Router Bit

The Onsrud 52-287 is a solid carbide router bit with a spiral upcut design. It features a 1/4 inch cutter diameter and is built for routing operations. The tool is intended for use on MDF and wood materials.

Suited for wood routing; not for metal

This bit suits woodworkers and CNC operators cutting MDF or solid wood where upward chip evacuation is needed. It is not for metalworking, masonry or plastics that require different flute geometry or coatings. Buyers needing a downcut or compression spiral for cleaner top edges should look elsewhere.

1/4 inch cutter diameter decides fit

The single specification that determines compatibility is the 1/4 inch cutter diameter. Your collet or tool holder must accept this exact shank size for the bit to be the right part.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $39.99
Pricier than about 68% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameOnsrud
Model name52-287
Product typeHole, Drill, Bore & Wire Gauges
Size & build
Main materialCarbide

Questions about this item

When will the carbide cutting edges need resharpening or replacement?

Carbide edges stay sharp far longer than high-speed steel, but resharpening is required once the upcut flutes no longer clear chips cleanly in MDF or wood.

What limit appears first during a long routing pass?

Heat buildup in the solid carbide body becomes the limiting factor before the 1/4 in cutter diameter deflects in dense material.

How much noise and heat does the bit generate in all-day CNC work?

The upcut spiral pulls chips upward, reducing friction and heat, so the router motor runs cooler and quieter than with straight-flute bits.

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