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Onsrud 61-043 O-Flute carbide routing end mill, straight flute, 1/8 inch cutter diameter

Onsrud

Onsrud 61-043 O-Flute Routing End Mill hand tool

SKU CH-QP84-1ZV9S MPN 61-043

Solid carbide router bit with a straight O-flute designed for hard and soft plastics

  • Product typeAngle, Pitch & Slope Locators
  • Main materialCarbide
  • Carbide construction resists wear for longer tool life
  • O-Flute design clears chips efficiently in plastics
  • Straight flute geometry produces clean cuts in hard and soft plastics
  • 1/8 inch cutter diameter suits detailed routing work
  • Solid router bit built for plastic fabrication tasks

Product Identity

The Onsrud 61-043 is a solid carbide router bit with a straight O-flute design. It is intended for machinists and fabricators cutting hard or soft plastics. The 1/8 inch cutter diameter suits detailed routing work.

Bundled Accessories

No additional accessories or software are included with this tool. The product ships as a single cutting component ready for immediate use in a compatible collet. Buyers needing collets, wrenches or dust collection must source them separately.

Interface Limits

The straight O-flute geometry is optimised for plastic materials and may not perform well in metals or wood. The 1/8 inch shank requires a matching collet size which limits compatibility with larger tool holders. California Proposition 65 warning applies due to chemical content.

How it compares

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

Price $46.99
Pricier than about 72% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameOnsrud
Model name61-043
Product typeAngle, Pitch & Slope Locators
Size & build
Main materialCarbide

Questions about this item

When will the carbide cutting edges need resharpening or replacement?

Resharpen when the 1/8 in O-Flute edges no longer produce clean cuts in hard or soft plastic; a professional sharpening service can restore the carbide geometry multiple times before a new bit is required.

What limits continuous routing in plastic with this 1/8 in O-Flute bit?

Heat buildup in the carbide and chip evacuation through the straight flute become the limiting factors during prolonged cuts; reduce feed or use air blast to maintain edge life.

How much heat and noise does the bit generate during all-day CNC routing?

The solid carbide 1/8 in O-Flute runs cool with proper chip load; noise is dominated by the spindle and material, not the bit itself, and no external power is drawn by the tool.

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