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Amana Tool

51504-K Spiral O Single Flute Plastic Cutting Down-Cut Mirror Finish CNC Router Bit 1/4"D 3/4"CH 1/4"SH 2"OL

Item #179645 Model 51504-K
Regular price $46.65
Sale price $46.65 Regular price $46.65
The Amana Spiral O Single Flute Plastic Cutting Down-Cut Mirror Finish CNC Router Bit is made to be used only on CNC machines and routers with automatic feeding. Produce super. . . View More Details

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The Amana Spiral O Single Flute Plastic Cutting Down-Cut Mirror Finish CNC Router Bit is made 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 down. 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) - Use the slowest suggested feed rates and the shortest bits necessary for cutting and routing 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

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

Amana Spektra bits feature a nACo nanocomposite coating with an extreme nano hardness 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.


  • Diameter: 1/4"
  • Cutting Height: 3/4"
  • Shank: 1/4"
  • Overall Length: 2"

Download Vectric 51504-K File

Tool #51504-K Vectric Compatible Tool File

51504-K tool file to be used with all versions of Vectric software from version 8.0 and up. Works with Aspire, VCarve, Cut2D, Cut3D and PhotoVCarve.

This tool file is to be used as a starting point for your CNC projects and the parameters should be adjusted based on your project and material.


1. Download to a safe location such as your desktop.

2. In the software, open the Tool Database and use the import option to load the file from the safe location.

Vectric File Warning

The Vectric .tool file should only be used in conjunction with the Amana Tool item number specified. Using this file with other brands is dangerous to the operator and CNC machine.

Shipping / Billing Information

This product ships direct from the manufacturer:

  • Your order will ship in approximately 5 business days.
  • This product is considered special order. Your account will be charged when you place your order.
  • Express or overnight shipping is not available for this product.
  • Ships by Ground to the 48 contiguous states. Cannot ship to Alaska, Hawaii, PO Boxes, APOs, US Territories, Canada or other foreign countries.

Return Information

Amana Tool accepts returns in new saleable condition only within 60 days of purchase and requires a Return Authorization. Contact Woodcraft Customer Service for Return Authorization. A restocking fee of up to 20% may apply. Customer pays return freight. The tools are to be packed carefully. Saw blades must be shipped in an exterior carton for protection. Saw blades shipped with only Amana Tool saw blade sleeves or clamshells will be refused.

Warranty Information

Amana Tool warranties against defects in material or workmanship for 30 days. All other warranties, either expressed or implied, are denied.