Smooth Surface Edge
The verified down-cut spiral direction cuts from the surface downward, helping leave a smooth edge at the workpiece surface in laminate, melamine, plywood, and wood.


Amana Tool 46244-K is a two-flute solid-carbide down-cut spiral plunge router bit with a 3/32-inch diameter, 1/4-inch cutting height, 1/4-inch shank, and 2-inch overall length. The down-cut geometry leaves a smooth edge at the workpiece surface while spiral-flute shearing action supports clean, accurate grooves and dado cuts in abrasive panel materials.
A solid-carbide, two-flute down-cut spiral plunge router bit with Spektra™ Extreme Tool Life nACo® nanocomposite ceramic coating. The exact official Tool No. is 46244-K.
Primarily intended for CNC machines and automatic routers, with compatibility also stated for handheld and table-mounted portable routers using a secure 1/4-inch collet. The linked official spiral-plunge chart publishes an 18,000 RPM CNC operating reference.
Amana Tool 46244-K is the exact two-flute solid-carbide Spektra™ down-cut spiral plunge router bit shown on its dedicated official product page. It combines a 3/32-inch cutting diameter, 1/4-inch cutting height, 1/4-inch shank, and 2-inch overall length in a compact precision-routing format.
Spiral flutes combine a shearing action at the cutting edge with an augering action for chip clearance. Amana Tool states that the down-cut direction cuts from the surface downward, leaving a smooth edge at the workpiece surface. The tool is suited to grooves and dado cuts in particleboard, plywood, laminate, melamine, MDF, cork, veneered plywood, and wood.
The solid-carbide body uses a specialized carbide grade with increased-clearance geometry, polished flutes, and sharp cutting edges. Spektra™ nACo® nanocomposite ceramic coating is designed to help retain edge sharpness and lubricity while resisting heat and oxidation. The official chart identifies 46244-K as a two-flute 3/32-inch down-cut tool and publishes an 18,000 RPM CNC operating reference.
Technical Specifications
The verified down-cut spiral direction cuts from the surface downward, helping leave a smooth edge at the workpiece surface in laminate, melamine, plywood, and wood.
Spiral-flute shearing action supports an accurate cut while the augering action clears chips, making the tool well suited to compact grooves and dado work in panel materials.
The micro-thin nanocomposite ceramic coating helps retain cutting-edge sharpness and lubricity while resisting heat and oxidation in production routing applications.
Confirm exact SKU 46244-K, a compatible 1/4-inch collet, secure workholding, and sufficient clearance for the 1/4-inch cutting height. Amana Tool warns that this extremely small-diameter bit is not guaranteed against breakage. The official 18,000 RPM chart is a recommendation and must be matched to the material, machine, tooling condition, and setup. Follow all Amana Tool and machine-manufacturer safety documentation.
Amana Tool 46244-K combines solid-carbide construction, two-flute down-cut spiral geometry, and Spektra™ nACo® coating for precise grooves, dado cuts, and clean surface-edge routing.
Its verified 3/32-inch diameter, 1/4-inch cutting height, 1/4-inch shank, and 2-inch overall length make it a focused small-diameter option for laminate, melamine, MDF, particleboard, plywood, veneered plywood, wood, and cork.