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SpeTool CA W05003 CNC Spoilboard Insert Carbide 4 Wing, Surfacing, Planing, Flycutting & Slab Leveler 2-1/2" Diameter x 1/2" Shank Router Bit

SKU: CA- IP4F-2-1/2-D1/2-FBA
Sale price$88.85 CAD

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Spoilboard Surfacing Router Bits are built for fast, smooth, and precise flattening of CNC spoilboards, slabs, and large wood surfaces. With ultra-sharp carbide inserts and a durable body, they deliver clean cuts, extend tool life, and reduce sanding—perfect for keeping your CNC bed true and ready for accurate machining.

Excellent For Cutting:

  • MDF
  • Chipboard
  • Hardwood
  • Plastic
  • Plywood
  • Fiberboard
  • Softwood
  • Acrylic

TOOL SPECS: 1/2" shank, 2-1/2" cutting diameter, 4-wing carbide inserts (12×12×2.2 mm, 35° straight hole) for precise surfacing.

FAST & EFFICIENT: 4-wing design delivers smooth, high-speed cuts with fewer passes.

      13 in stock
      Quantity:
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      Smooth starts with the right bit.

      Frequently Asked Questions

      Designed for leveling and cleaning the sacrificial spoilboard on CNC tables or router sleds. Wide diameter and multiple flutes ensure efficient flattening.

      A ½" shank offers greater rigidity and less vibration compared to thinner shanks.

      Replaceable insert bits (like Amana's with 4-sided knives) offer better longevity—cheaper over time versus replacing entire bits.

      Absolutely—surfacing bits perform flat surfacing much faster than small end mills, significantly reducing runtimes.

      Yes—but may still require sanding afterward for full smoothness.

      Community reports describe dust clouds on “cosmic scales”—strong dust collection is essential.

      Routers with 2¼ HP+, ½" collet, variable speed, and soft start are preferred. Examples: Porter-Cable 890, Bosch 1617 EVS.

      Some recommend raising spoilboard height or using a shorter sled to compensate.

      Yes—take shallow passes, reduce RPM, and keep bit moving to avoid burning.

      Use appropriate feed/fine passes and larger diameter bits; users reported no ridges on 5×8’ table using 2.5" bit.