51404 Solid Carbide CNC Spiral 'O' Flute, Plastic Cutting 1/4 Dia x 3/4 x 1/4 Inch Shank Up-Cut Router Bit

Manufacturer: Amana Tools
SKU: 51404
MPN: 51404

To order or inquire about this product, please call one of our sales representative at (800) 736-3524.

To be used only on CNC machines and routers with automatic feeding.

Produce super clean, smooth cuts especially in acrylic materials (Plexiglas® Lucite®) other plastics and wood. Bits are made according to strict tolerances from an exclusive carbide grade and polished to a mirror finish using Amana’s unique process. Designed to eject chips up. Ideal for industrial applications and CNC machines. Right hand helix right hand cut.

Excellent for cutting:

  • Plastic/Acrylic
  • Acetal and Nylon
  • Acrylic Stone
  • Acrylonitrile Butadiene Styrene (ABS)
  • Aluminum Composite Material (ACM)
  • Alupanel®
  • Corian
  • Coroplast®**
  • Corrugated Plastics* such as Correx Boards and Polypropylene
  • Crosslinked Polyethylene (XPE, PEX, XLPE)
  • Delrin
  • Dibond®
  • Extruded Acrylic
  • Foam Board
  • Fomex®
  • Gatorfoam®***
  • Hard Plastic
  • High Density Polyethylene (HDPE)
  • High Density Urethane (HDU Board)
  • High Impact Polystyrene (HIPS)
  • High Impact Polystyrene (HIPS) for digital printing
  • High Pressure Laminates (HPL)
  • Hydroxy-Terminated Polyether (HTPE)
  • King ColorCore® The Multi-Color Engravable Polymer Sheet.
  • Laminate
  • Low Density Polyethylene (LDPE)
  • LubX®
  • Lucite®
  • Mechanical/Engineered Plastics
  • Perspex® Cast Acrylic Sheet
  • Plexiglas®
  • Poly (methyl methacrylate) (PMMA)
  • Polycarbonate (Lexan™)†
  • Polyethylene Terephthalate Glycol-Modified (PETG / PET-G)
  • Polyoxymethylene (POM), also known as Acetal, Polyacetal and Polyformaldehyde.
  • Polystyrene (PS)
  • PVC
  • Sign Foam
  • Sintra PVC
  • Solid Surface
  • StarBoard® (King StarBoard 'R') High Density Polyethylene Sheet (HDPE)
  • Teflon®
  • Thermoplastic Polyolefin (TPO)
  • Trespa® Meteon®****
  • Ultra High Molecular Weight Polyethylene (UHMWPE)
  • Urethane
  • Vinyl Flooring
  • Wood


*Corrugated Plastics such as Correx refers to a wide range of extruded twinwall plastic-sheet products produced from high-impact Polypropylene resin with a similar make-up to corrugated fiberboard. They are used in a variety of applications including boat building packaging signage outdoor advertising and the production of pet cages.

**A soft plastic cardboard made with super soft super flexible PVC.

***Gatorfoam® Foam Board a polystyrene foam board bonded between two layers of Luxcell® wood-fiber veneer.

****Decorative high-pressure compact laminate (HPL) with an integral surface.

†Recommendation: Use the slowest suggested feed rates and the shortest bits necessary for cutting and routing Lexan™.

Benefits of Mirror-Finish:

  • Razor sharp cutting edge
  • Effortless chip removal
  • Helps prevent chip re-welding
  • Extends tool life
  • Exceptional cut quality
  • Dissipates heat well and prevents melting


Maximum RPM: 35,000
To be used only on CNC machines and routers with automatic feeding.

Produce super clean, smooth cuts especially in acrylic materials (Plexiglas® Lucite®) other plastics and wood. Bits are made according to strict tolerances from an exclusive carbide grade and polished to a mirror finish using Amana’s unique process. Designed to eject chips up. Ideal for industrial applications and CNC machines. Right hand helix right hand cut.

Excellent for cutting:

  • Plastic/Acrylic
  • Acetal and Nylon
  • Acrylic Stone
  • Acrylonitrile Butadiene Styrene (ABS)
  • Aluminum Composite Material (ACM)
  • Alupanel®
  • Corian
  • Coroplast®**
  • Corrugated Plastics* such as Correx Boards and Polypropylene
  • Crosslinked Polyethylene (XPE, PEX, XLPE)
  • Delrin
  • Dibond®
  • Extruded Acrylic
  • Foam Board
  • Fomex®
  • Gatorfoam®***
  • Hard Plastic
  • High Density Polyethylene (HDPE)
  • High Density Urethane (HDU Board)
  • High Impact Polystyrene (HIPS)
  • High Impact Polystyrene (HIPS) for digital printing
  • High Pressure Laminates (HPL)
  • Hydroxy-Terminated Polyether (HTPE)
  • King ColorCore® The Multi-Color Engravable Polymer Sheet.
  • Laminate
  • Low Density Polyethylene (LDPE)
  • LubX®
  • Lucite®
  • Mechanical/Engineered Plastics
  • Perspex® Cast Acrylic Sheet
  • Plexiglas®
  • Poly (methyl methacrylate) (PMMA)
  • Polycarbonate (Lexan™)†
  • Polyethylene Terephthalate Glycol-Modified (PETG / PET-G)
  • Polyoxymethylene (POM), also known as Acetal, Polyacetal and Polyformaldehyde.
  • Polystyrene (PS)
  • PVC
  • Sign Foam
  • Sintra PVC
  • Solid Surface
  • StarBoard® (King StarBoard 'R') High Density Polyethylene Sheet (HDPE)
  • Teflon®
  • Thermoplastic Polyolefin (TPO)
  • Trespa® Meteon®****
  • Ultra High Molecular Weight Polyethylene (UHMWPE)
  • Urethane
  • Vinyl Flooring
  • Wood


*Corrugated Plastics such as Correx refers to a wide range of extruded twinwall plastic-sheet products produced from high-impact Polypropylene resin with a similar make-up to corrugated fiberboard. They are used in a variety of applications including boat building packaging signage outdoor advertising and the production of pet cages.

**A soft plastic cardboard made with super soft super flexible PVC.

***Gatorfoam® Foam Board a polystyrene foam board bonded between two layers of Luxcell® wood-fiber veneer.

****Decorative high-pressure compact laminate (HPL) with an integral surface.

†Recommendation: Use the slowest suggested feed rates and the shortest bits necessary for cutting and routing Lexan™.

Benefits of Mirror-Finish:

  • Razor sharp cutting edge
  • Effortless chip removal
  • Helps prevent chip re-welding
  • Extends tool life
  • Exceptional cut quality
  • Dissipates heat well and prevents melting


Maximum RPM: 35,000