Amana Tool D 1/4 Inch 3-Flute Downcut Spiral Router Bit with Spektra Coating 51631-K

Amana ToolSKU: AM-51631-K

Those seeking improved surface finishes in either plastics or hardwoods do well to move up to Amana Tool's 3 flute Low Helix Finishers. The unbeatable combination of three keen edges and a gentle 10º helix, equates to a stiffer tool that minimizes both part movement and edge burring, leaving a smooth finish.

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Those seeking improved surface finishes in either plastics or hardwoods do well to move up to Amana Tool's 3 flute Low Helix Finishers. The unbeatable combination of three keen edges and a gentle 10º helix, equates to a stiffer tool that minimizes both part movement and edge burring, leaving a smooth finish.

Excellent for Cutting:

  • Plastic
  • Acrylic Stone
  • Acrylonitrile Butadiene Styrene (ABS)
  • Corian
  • Composite Plastic
  • Coroplast
  • Delrin
  • Foam
  • Fomex
  • Hardwood
  • High Impact Polystyrene (HIPS)
  • High Pressure Laminates (HPL)
  • Hydroxy-Terminated Polyether (HTPE)
  • Low Density Polyethylene (LDPE)
  • LubX
  • Perspex® Cast Acrylic Sheet
  • Poly (methyl methacrylate) (PMMA)
  • Polyethylene Terephthalate Glycol-Modified (PETG / PET-G)
  • Polyoxymethylene (POM), also known as Acetal, Polyacetal and Polyformaldehyde.
  • Precision Board
  • Sign Foam
  • Softwood
  • Solid Surface
  • StarBoard® (King StarBoard 'R') High Density Polyethylene Sheet (HDPE)
  • Thermoplastic Polyolefin (TPO)
  • Urethane
Our Spektra™ bits feature a nACo® nanocomposite coating with an extreme nanohardness and heat resistance. With a brilliant distinctively-tinted coloring nACo provides additional improvements in four critical aspects of router tooling.
  • nACo coating is a micro-thin ceramic coating which enables the tool's cutting edge to retain crucial sharpness and lubricity. This provides longevity and produces cutting results of the highest quality.
  • Coating prevents high heat and oxidation which is detrimental to cutting tool performance.
  • Multi-colored hues, while attractive, will dissipate upon use and yet coating will remain fully effective.
  • nACo offers approximately 4,500 Vickers for impressive solid hardness on cutting areas of the tool, for an increase up to 2.5 times compared to uncoated bits.

Note: Blue based color dissipates immediately upon use. nACo® nanocomposite coating will not wear off.

  • 1/4 inch diameter
  • 7/8 inch cutting height
  • 1/4 inch shank
  • 3 inch overall length
  • 3 flutes

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