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Small carbide router bit, 0.125 inch diameter, silver metal finish

Onsrud

Onsrud 61-042 Solid Router Bit 0.125 in Carbide hand tool

SKU CH-9890-6AJZW MPN 61-042

Solid carbide router bit with a 0.125 in straight O-flute cutter for hard and soft plastics

  • TypeAngle, Pitch & Slope Locators
  • MaterialCarbide
  • Weight0.04
  • Carbide construction resists wear for longer tool life
  • 1/8 inch cutter diameter suits precision routing tasks
  • Straight O-flute design clears chips efficiently in plastics
  • Lightweight at 0.04 units for reduced operator fatigue
  • Optimised for hard and soft plastic materials

Solid Carbide Router Bit

This solid carbide router bit is designed for precision routing in hard and soft plastics. The straight O-flute geometry promotes clean chip evacuation and reduces heat buildup. It suits CNC operators and fabricators who need accurate cuts in plastic sheet or block material. The 0.125 inch cutter diameter supports detailed profiling and slotting work.

Best for plastic fabrication, not metal

Users routing acrylic, polycarbonate, HDPE or similar plastics will benefit from the carbide construction and flute design. The tool is not intended for ferrous or non-ferrous metals, composites with abrasive fillers, or heavy stock removal in dense hardwoods. Buyers needing larger diameters or different flute configurations should look at other tooling options.

0.125 inch cutter diameter decides fit

The 1/8 inch cutting diameter determines the minimum feature size and toolpath resolution achievable. Match this dimension to your CAD/CAM tool library and machine spindle collet capacity before ordering. A different diameter is required if your design calls for wider channels or tighter internal radii.

Highlights

  • Carbide construction resists wear for longer tool life
  • 1/8 inch cutter diameter suits precision routing tasks
  • Straight O-flute design clears chips efficiently in plastics
  • Lightweight at 0.04 units for reduced operator fatigue
  • Optimised for hard and soft plastic materials

Specifications

BrandOnsrud
Model61-042
TypeAngle, Pitch & Slope Locators
MaterialCarbide
Weight0.04

Questions about this item

Does this Onsrud 61-042 bit fit a standard 1/8 in router collet?

Yes, the cutter diameter is 1/8 in, so it fits a standard 1/8 in collet on any compatible router.

Can I keep using my older router motor with this solid carbide bit?

The bit works with any router that accepts a 1/8 in shank and runs at appropriate speeds for carbide tooling.

How do I know the O-flute geometry is cutting cleanly in hard plastic?

You will see smooth, chip-free edges and consistent chip evacuation without melting or rough surfaces.

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