Amana Tool Spektra™ Extreme Tool Life Coated Solid-Carbide Single O-Flute Plastic Cutting Up-Cut CNC Router Bit, 1/8-Inch Diameter x 3/4-Inch Cutting Height x 1/4-Inch Shank
Spektra™ Spiral O-Flute
Plastic Cutting CNC Bit
Amana Tool 51446-K is a solid-carbide, single-flute, up-cut spiral O-flute CNC router bit with a 1/8-inch diameter, 3/4-inch cutting height, 1/4-inch shank, 2-1/2-inch overall length and Spektra™ nACo® ceramic coating for clean plastic, acrylic and wood routing.
Main Product Description
Amana Tool 51446-K is the exact Tool No. shown on its dedicated official product page in the Solid Carbide Spektra™ Extreme Tool Life Coated Spiral O-Flute Plastic Cutting CNC Router Bits family. The official specification block confirms up-cut direction, 1/8-inch diameter, 3/4-inch cutting height, 1/4-inch shank, 2-1/2-inch overall length, one flute and nACo® ceramic coating.
The single O-flute geometry is made from an exclusive solid-carbide grade, polished to a mirror finish and designed to eject chips upward. Amana Tool identifies super-clean, smooth cutting in acrylic materials, other plastics and wood, with right-hand helix and right-hand cut geometry.
The mirror-finished cutting edge is intended to promote chip evacuation, reduce chip re-welding, dissipate heat and help prevent melting. The official Spektra™ nACo® nanocomposite coating is a micro-thin ceramic treatment designed to retain cutting-edge sharpness and lubricity while resisting heat and oxidation.
The official material list includes acrylic, Plexiglas®, Lucite®, ABS, acetal, nylon, PVC, HDPE, UHMWPE, polycarbonate, PETG, solid surface, ACM, laminate, sign foam, engineered plastics, cork and wood. Maximum published speed is 35,000 RPM, and use is restricted to CNC machines and routers with automatic feeding.
Best Fit Applications
Product Highlights
Mirror-Finished O-Flute Edge
The polished single-flute geometry supports clean cutting, efficient chip removal and reduced chip re-welding in plastic and acrylic materials.
Spektra™ nACo® Coating
The micro-thin nanocomposite ceramic coating is engineered to retain edge sharpness and lubricity while resisting heat and oxidation.
Up-Cut Chip Evacuation
Right-hand up-cut geometry directs chips upward for industrial CNC routing in acrylic, plastics, solid surface, sign materials and wood.
Compatibility & Installation Notes
Confirm exact Tool No. 51446-K, a compatible 1/4-inch CNC collet, adequate cutter clearance and guarding, secure workholding and automatic machine feeding. Observe the official 35,000 RPM maximum and account for up-cut chip direction. For polycarbonate such as Lexan™, Amana Tool recommends the slowest suggested feed rates and the shortest practical bit. Follow Amana Tool and CNC machine-manufacturer safety documentation.
Mirror-Finished O-Flute Geometry for Plastics and Acrylic
Amana Tool 51446-K combines a 1/8-inch solid-carbide cutting diameter, 3/4-inch cutting height, 1/4-inch shank, 2-1/2-inch overall length, single up-cut O-flute and 35,000 RPM maximum.
Its polished cutting edge and Spektra™ nACo® coating support clean CNC routing, chip evacuation, heat control and reduced chip re-welding across acrylic, plastics, sign materials, solid surface and wood.