Studio product shot of the Freud 04-508 double flute straight router bit, featuring a solid carbide construction with a 1/4-inch shank and a dark Black I.C.E. coated cutter head.
Technical diagram showing a cross-section of a wood cut, indicating a precise slot width of 3mm and a cutting depth of 5/16 inch for model number 04-508.
3D computer graphic showing a block of wood with a narrow, clean rectangular channel groove cut into the top surface, illustrating the fine grooving profile of the 3mm bit.
Top-down diagram of the router bit profile showing the circular cutting path and the arrangement of the two grey carbide cutting flutes against a red background.
Freud Black Ice CNC Bits promotional video
Studio product shot of the Freud 04-508 double flute straight router bit, featuring a solid carbide construction with a 1/4-inch shank and a dark Black I.C.E. coated cutter head.
Technical diagram showing a cross-section of a wood cut, indicating a precise slot width of 3mm and a cutting depth of 5/16 inch for model number 04-508.
3D computer graphic showing a block of wood with a narrow, clean rectangular channel groove cut into the top surface, illustrating the fine grooving profile of the 3mm bit.
Top-down diagram of the router bit profile showing the circular cutting path and the arrangement of the two grey carbide cutting flutes against a red background.
Freud Black Ice CNC Bits promotional video
Freud

Freud 04-508 3mm Diameter Straight Router Bit 1/4 Inch Shank Double Flute Solid Carbide Black ICE Coating for CNC Wood Plywood 5/16 Cut Length

Only 1 left
SKU: 04-508
$12.99

Description

Achieve Ultra-Fine Detail and Superior Tool Life with the Freud 3mm Black I.C.E. Solid Carbide Router Bit

Execute intricate inlays, precise joinery, and fine detailing with the Freud 04-508 3mm Double Flute Straight Bit. This professional-grade cutter is machined from Freud's Premier Solid Carbide, ensuring exceptional rigidity and edge retention even when routing abrasive materials. What sets this bit apart is the advanced Black I.C.E. (Industrial Cooling Element) coating. This slick, high-tech finish protects the cutting edge by shielding it against heat, pitch buildup, and resin, effectively delivering up to 2X the life and performance compared to standard uncoated bits.

Designed for versatility and high production, the 04-508 features a 1/4-inch shank that fits most standard CNC machines, hand-held routers, and table-mounted setups. The precise double-flute geometry provides a balance of fast chip clearance and a super-smooth finish in hardwood, softwood, plywood, and composites. With a cutting length of 5/16 inch and end-relieved tips for efficient plunging, this tool is the ultimate solution for sign-making, lettering, and detailed groove work where precision and finish quality are paramount.

Key Features

  • Black I.C.E. Coating: Slick coating keeps the cutting edge cool and enhances chip evacuation for superior finish quality.
  • Extended Tool Life: Delivers 2X increased performance and longevity compared to standard uncoated bits.
  • Premier Solid Carbide: Solid carbide construction provides maximum rigidity and sharpness for fine detail work.
  • Double Flute Geometry: Precise hook and shear angles ensure fast cutting and smooth surfaces.
  • Versatile Compatibility: Designed for use in CNC, hand-held, and table-mounted routers.
  • Multi-Material Performance: cuts cleanly through hardwood, softwood, plywood, and composites.
  • Plunge Ready: Relieved tips allow for vertical drilling and starting cuts in the center of the material.

What's Included:

  • (1) 3mm Dia. Double Flute Straight Bit with 1/4 In. Shank (Model 04-508)

Specifications

Model Number 04-508
Overall Diameter (D) 3mm (approx. 0.118 In.)
Shank Diameter (A) 1/4 In.
Carbide Height (h) 5/16 In.
Overall Length (H) 2 In.
Number of Cutters 2 (Double Flute)
Max RPM 24,000 RPM
Material Premier Solid Carbide
Coating Black I.C.E.
Application Fine Detail, Grooving, Inlay
Pro-Tip: Small diameter bits like this 3mm cutter are incredibly useful but fragile. To prevent snapping the bit, always increase your router speed (RPM) and decrease your feed rate. Never attempt to cut the full depth in one pass; use multiple light passes to reduce side-load pressure on the solid carbide shaft.