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)
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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.
