An angled view of the Freud 18-104 round nose router bit, highlighting the shape of the cutting head and the smooth 1/4-inch shank with etched markings.
A side profile view of the Freud 18-104 router bit, showing the rounded cutting tip and the laser-etched model number and minimum insertion line on the shank.
A macro, top-down view directly into the cutting end of the Freud 18-104 router bit, showing the precision-ground carbide cutting edges.
An angled view of the Freud 18-104 round nose router bit, highlighting the shape of the cutting head and the smooth 1/4-inch shank with etched markings.
A side profile view of the Freud 18-104 router bit, showing the rounded cutting tip and the laser-etched model number and minimum insertion line on the shank.
A macro, top-down view directly into the cutting end of the Freud 18-104 router bit, showing the precision-ground carbide cutting edges.
Freud

Freud Router Bit 18-104 1/8 Inch Radius Round Nose Core Box (Sign Lettering Fluting Woodworking Tool)

In stock
SKU: 18-104
$16.30 USD
$27.87 USD Sale $16.30 USD

Description

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Freud 18-104 1/8-Inch Radius Round Nose Core Box Router Bit with 1/4-Inch Shank

The Freud 18-104 1/8-Inch Radius Round Nose Core Box Router Bit cuts smooth decorative grooves, fluting channels, and crisp sign lettering across hardwoods, softwoods, and plywood panels. Engineered with TiCo high-density carbide cutters and an advanced Black I.C.E. thermal cooling coating, this 2-inch overall length router bit delivers up to twice the operating lifespan of standard bits while evacuating chips efficiently. Featuring a precision-ground 1/4-inch shank and a kickback-reducing body design, this versatile woodworking accessory provides woodworkers and cabinetmakers with flawless engraving and fluting performance in handheld, table-mounted, or CNC routers.

Best Used For:

  • Sign Lettering & Precision Engraving: Routing crisp, clean alphanumeric characters and decorative details into wood signage.
  • Decorative Column & Panel Fluting: Cutting rounded flutes and architectural grooves into cabinet doors, pilasters, and furniture columns.
  • Core Box Drawer & Millwork Routing: Milling semi-circular channels and coves inside solid wood drawers or decorative trim.

Key Performance & Safety Features

  • Black I.C.E. Cooling Coating: Industrial cooling element minimizes friction, pitch buildup, and heat accumulation during extended routing operations.
  • TiCo High-Density Carbide Tips: Premium carbide metallurgy maintains a razor-sharp cutting edge for superior wear resistance.
  • Kickback-Reducing Body Design: Engineered geometry limits stock feed rate surges for safer handheld and table routing control.
  • Computer-Balanced Precision: Individually balanced and ground to eliminate vibration and produce ultra-smooth surface finishes.
  • Universal Router Compatibility: Fits securely into handheld, table-mounted, and computer numeric control (CNC) routers.

What's Included

  • (1) Freud 18-104 1/8" Radius Round Nose Core Box Router Bit

Technical Specifications

Specification Detail
Model Number / Part ID 18-104 (18104 Core Box Bit)
Cutter Cutting Radius 0.125 in (1/8 in / 3.18 mm Radius)
Overall Cutter Diameter 0.25 in (1/4 in / 6.35 mm Diameter)
Carbide Cutting Height 0.375 in (3/8 in / 9.53 mm Height)
Router Shank Diameter 0.25 in (1/4 in Shank Size)
Overall Tool Length 2.0 in (50.8 mm)
Cutter Blade Count 2 Flute Cutters
Thermal Surface Coating Black I.C.E. Cooling Element
Carbide Material Grade TiCo Hi-Density Carbide Inserts
Manufacturer Warranty Freud Limited Lifetime Warranty
Target Trade Application Engraving, Sign Lettering, Fluting Woodwork
Pro-Tip: Make multiple shallow depth passes when routing deep flutes or sign lettering with the Freud 18-104 bit; incremental cutting prevents wood burning and preserves the sharpness of the 1/8-inch radius carbide tip.