A studio product shot of the Freud 76-109 down-spiral router bit, featuring a solid carbide body with a polished silver shank and a dark blue-black coated spiral cutting edge.
A technical diagram illustrating the cutting profile of the Freud 76-109 bit, showing a 1/2-inch wide and 1-1/2-inch deep vertical groove cut into a wood block.
A 3D architectural sample of solid wood featuring a wide vertical groove cut into the center of the block.
An instructional graphic demonstrating the downward cutting action of the down-spiral bit, using a blue arrow to show rotation and a red arrow to show downward pressure for a better finish on the top surface.
An informational graphic titled Materials, displaying 3D samples of veneered plywood, hardwoods, softwoods, and composites to indicate the compatible surfaces for this 4-wing slotting cutter.
An informational graphic titled Tools, showing a handheld router, a table-mounted router, and a CNC machine spindle to demonstrate the different equipment compatible with this mortise bit.
A studio product shot of the Freud 76-109 down-spiral router bit, featuring a solid carbide body with a polished silver shank and a dark blue-black coated spiral cutting edge.
Freud Black Ice CNC Bits promotional how to video
A studio product shot of the Freud 76-109 down-spiral router bit, featuring a solid carbide body with a polished silver shank and a dark blue-black coated spiral cutting edge.
A technical diagram illustrating the cutting profile of the Freud 76-109 bit, showing a 1/2-inch wide and 1-1/2-inch deep vertical groove cut into a wood block.
A 3D architectural sample of solid wood featuring a wide vertical groove cut into the center of the block.
An instructional graphic demonstrating the downward cutting action of the down-spiral bit, using a blue arrow to show rotation and a red arrow to show downward pressure for a better finish on the top surface.
An informational graphic titled Materials, displaying 3D samples of veneered plywood, hardwoods, softwoods, and composites to indicate the compatible surfaces for this 4-wing slotting cutter.
An informational graphic titled Tools, showing a handheld router, a table-mounted router, and a CNC machine spindle to demonstrate the different equipment compatible with this mortise bit.
A studio product shot of the Freud 76-109 down-spiral router bit, featuring a solid carbide body with a polished silver shank and a dark blue-black coated spiral cutting edge.
Freud Black Ice CNC Bits promotional how to video
Freud

Freud Down Spiral Router Bit 76-109 1/2 Inch Solid Carbide Core (2 Flute 24000 Max RPM Single Sided Veneer Laminate Plywood Dado Groove CNC)

Only 1 left
SKU: 76-109
$53.99 USD

Description

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Industrial Down-Shear Spiral Tooling for Flawless Top-Surface Grooves and CNC Nesting

The Freud 76-109 1/2-Inch Down Spiral Solid Carbide Router Bit delivers professional-grade machining accuracy for precise dado routing, groove processing, and automated CNC nesting operations. Engineered with a downward spiral geometry, this premium wood cutting tool forces material fibers down into the cut path to completely eliminate top-edge splintering and tear-out at speeds up to 24,000 RPM. The rigid solid core is manufactured from specialized TiCo high-density carbide, providing double the cutting lifespan and structural edge retention compared to standard untreated steel tooling. The down-shear mechanical action simultaneously presses the workpiece firmly against the tool bed to stabilize high-volume production routing and prevent structural part shifting.

Best Used For:

  • Single-Sided Veneer Grooving: Cutting perfect structural dadoes in high-grade veneered plywood and delicate laminates where the visible top face must remain completely chip-free.
  • Shallow Dado Panels: Milling recessed cabinet tracking profiles and clean joinery channels into medium-density fiberboard, particleboard, or wood composites.
  • CNC Template Profiling: Running automated nesting programs where downward mechanical forces help stabilize sheet goods against a vacuum or clamp bed.

Key Performance & Safety Features

  • Down Spiral Helix Geometry: Advanced downward shear layout forces material waste away from the face, preserving fragile laminate borders from structural tear-out.
  • Black I.C.E. Technology: Industrial Cooling Element non-stick surface treatment lowers mechanical heat storage and facilitates clean, constant chip evacuation.
  • TiCo High-Density Carbide: Custom micrograin tungsten carbide formulation maintains a razor-sharp cutting geometry through highly abrasive manufacturing cycles.
  • Integrated Clamping Assistance: Downward cutting action forces help secure the substrate down onto the router table or template grid to mitigate vibration.
  • Dual Flute Construction: Micro-balanced two-cutter design ensures maximum feed track tracking stability and smooth channel walls during rapid passes.
  • Multi-Machine Engineering: Precision ground 1/2-inch shank integrates flawlessly with high-spindle industrial CNC arrays, table shaper assemblies, and handheld collets.

What's Included

  • (1) Freud 76-109 1/2" Down Spiral Solid Carbide Router Bit

Technical Specifications

Specification Value
Brand Freud
Model Number 76-109
Bit Type Down Spiral
Material Construction Freud Premier Solid Carbide / TiCo
Overall Diameter 0.5 in
Shank Diameter 0.5 in
Carbide Height 1.5 in
Overall Length 4 in
Number of Cutters 2
Maximum Speed 24,000 RPM
Coating Black I.C.E.

Pro-Tip: Because a down-spiral bit forces wood chips downward into the grooved pathway instead of pulling them upward, chip clearance feed rates must be carefully balanced. When cutting deep blind dadoes, execute multiple shallow tracking passes or implement a pressurized air stream to blow out packed debris and avoid localized heat retention.