Freud CNC Router Bit 72-400 1/16 Inch Tapered Ball Nose (1/4 Inch Shank 24000 RPM 4 Flute 5.4 Degree Taper TiCo Carbide 3D Carving Engraving Tool)

In stock
SKU: 72-400
Regular price $39.95 USD
Regular price $66.15 USD Sale Sale price $39.95 USD

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Freud 72-400 1/16-Inch Solid Carbide Tapered Ball Tip CNC Router Bit with 1/4-Inch Shank

The Freud 72-400 1/16-Inch Tapered Ball Tip CNC Router Bit executes ultra-fine 3D relief carving, 2D detailed engraving, and precision contour sculpting across hardwoods, composite panels, plastics, and non-ferrous aluminum. Engineered with a continuous 5.4-degree side taper angle (10.8-degree included angle) transitioning to a micro 1/16-inch ball nose tip, this 1/4-inch shank end mill provides maximum lateral core rigidity to prevent tool deflection and breakage during deep multi-axis passes. Forged from solid TiCo Super Density Carbide and shielded with an advanced Black I.C.E. thermal barrier coating, its 4-flute spiral geometry operates up to 24,000 RPM to evacuate micro-chips rapidly and deliver a glass-smooth finish straight off the CNC table.

Best Used For:

  • High-Resolution 3D Relief Carving: Sculpting detailed topographical landscapes, architectural rosettes, and ornamental furniture appliques in dense hardwoods without tool chatter.
  • Intricate Dimensional Signmaking: Milling delicate script lettering, filigree details, and clean radiused bottom contours in acrylic, sign foam (HDU), and composite sheet goods.
  • Non-Ferrous Aluminum & Brass Milling: Engraving precision instrument dials, decorative metal plates, and prototype molds without tip gumming or edge welding.

Key Performance & Safety Features

  • Micro 1/16-Inch Ball Nose Tip: Allows deep, intricate contour access to capture the finest design details in multi-pass 3D finishing cycles.
  • 5.4-Degree Tapered Side Geometry: Conical flute profile expands core mass toward the 1/4-inch shank to eliminate flex and prevent snap failures.
  • Solid TiCo Super Density Carbide: Proprietary ultra-fine grain titanium cobalt matrix delivers extreme hardness and 2X the tool life over conventional solid carbide bits.
  • Black I.C.E. Protective Nanocoating: Industrial Cooling Element coating reduces frictional heat, prevents pitch buildup, and speeds chip extraction.
  • High-Efficiency 4-Flute Architecture: Multi-edge spiral flutes distribute chip loads evenly to achieve a mirror-smooth cut surface that eliminates manual sanding.
  • Rigid 1/4-Inch Precision Shank: Ground to tight aerospace tolerances for concentric, runout-free holding in all standard ER and CNC router collets.

What's Included

  • (1) Freud 72-400 1/16-Inch Tapered Ball Tip Solid Carbide CNC Router Bit with 1/4-Inch Shank

Technical Specifications

Specification Detail
Model Number 72-400
Tip Diameter (D) 0.0625 in (1/16 in / 1.58 mm)
Tip Radius (R) 0.0312 in (1/32 in / 0.79 mm)
Shank Diameter (A) 0.25 in (1/4 in / 6.35 mm)
Side Taper Angle (d) 5.4 Degrees (10.8° Included Angle)
Carbide Cutting Length (h) 1.00 in (1 in / 25.4 mm)
Overall Tool Length (H) 3.00 in (3 in / 76.2 mm)
Flute Configuration 4 Flute Helical Spiral
Maximum Spindle Speed 24,000 RPM
Cutter Metallurgy Solid TiCo Super Density Micro-Grain Carbide
Protective Coating Black I.C.E. (Industrial Cooling Element)
Machine Compatibility Automated CNC Routers and Precision Milling Centers
Substrate Suitability Hardwoods, Softwoods, Plywood, MDF, Acrylic, HDU Foam, Aluminum, Brass
Pro-Tip: Set your CNC finishing toolpath stepover to between 8% and 10% of the 1/16-inch tip diameter (approx. 0.005 to 0.006 in); this tight stepover leverages the 4-flute ball nose to eliminate visible cusp ridges on complex 3D relief carvings.