Studio product view of the Freud 18-108 router bit, featuring a 1/4 inch silver shank and a red Perma-SHIELD coated round nose cutting head with a 1/4 inch radius tip.
Retail packaging for the Freud 18-108 round nose bit, showing the red and black industrial branding, a diagram of the 1/4 inch radius profile, and icons indicating the 1/4 inch shank and TiCo carbide.
Technical diagram illustrating the cutting profile of the Freud 18-108 core box bit, showing a cross-section of a U-shaped groove cut into wood with a 1/2 inch width and a 1/4 inch radius.
Studio product view of the Freud 18-108 router bit, featuring a 1/4 inch silver shank and a red Perma-SHIELD coated round nose cutting head with a 1/4 inch radius tip.
Studio product view of the Freud 18-108 router bit, featuring a 1/4 inch silver shank and a red Perma-SHIELD coated round nose cutting head with a 1/4 inch radius tip.
Retail packaging for the Freud 18-108 round nose bit, showing the red and black industrial branding, a diagram of the 1/4 inch radius profile, and icons indicating the 1/4 inch shank and TiCo carbide.
Technical diagram illustrating the cutting profile of the Freud 18-108 core box bit, showing a cross-section of a U-shaped groove cut into wood with a 1/2 inch width and a 1/4 inch radius.
Studio product view of the Freud 18-108 router bit, featuring a 1/4 inch silver shank and a red Perma-SHIELD coated round nose cutting head with a 1/4 inch radius tip.
Freud

Freud 18-108 1/2 Inch Round Nose Router Bit 1/4 Inch Radius 1/4 Inch Shank Premier Solid Carbide Core Box Fluting Sign Making Engraving

Only 1 left
SKU: 18-108
$21.89 USD

Description

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Elevate Your Woodworking with Precision Fluting and Engraving

The Freud 18-108 Round Nose Router Bit is the professional’s choice for adding sophisticated engraved details to cabinet doors, drawer fronts, and custom millwork. Often referred to as a "Core Box" bit, this tool features a 1/2-inch diameter and a precise 1/4-inch radius designed to create perfectly smooth, semi-circular grooves. Whether you are a sign maker crafting high-visibility lettering or a furniture builder adding fluted accents to moldings, this bit delivers the intricate finish quality required for high-end projects.

Crafted from Freud Premier Solid Carbide, the 18-108 is engineered for maximum durability and a longer cutting life compared to standard bits. Its solid construction minimizes vibration, ensuring crisp, chatter-free results even at high speeds of up to 24,000 RPM. This versatile bit is optimized for use in hardwood, softwood, plywood, and various composites, making it a staple for CNC operations, hand-held routing, or table-mounted setups.

Key Features

  • Premier Solid Carbide: Provides superior strength and maintains a sharp edge longer for professional results.
  • Versatile Applications: Perfect for creating beautiful engraved flutes in doors, drawer fronts, and molding.
  • Sign Making Specialist: The ideal geometry for routing readable, professional-grade sign lettering.
  • Broad Material Compatibility: Effortlessly routs through hardwood, softwood, plywood, and composite materials.
  • Multi-Platform Use: Fully compatible with CNC and automatic routers, as well as hand-held and table-mounted portable routers.
  • Industrial Speed Rating: Engineered to handle speeds up to 24,000 RPM for efficient material removal.

What's Included

  • (1) Freud 18-108 1/2" Diameter Round Nose Router Bit

Specifications

Manufacturer Freud
Model Number 18-108
Overall Diameter (D) 1/2"
Radius (R) 1/4"
Shank Diameter (A) 1/4"
Carbide Height (h) 3/8"
Overall Length (H) 1-13/16"
Number of Cutters 2
Maximum RPM 24,000
Construction Premier Solid Carbide

Pro-Tip: When routing deep flutes or juice grooves in hardwoods, make multiple shallow passes rather than one single deep cut. This reduces heat buildup on the bit and prevents burning the wood, ensuring a perfectly smooth radius that requires minimal sanding.