Studio product shot of the Freud 04-128 double flute straight router bit, featuring a standard 1/4-inch silver shank and a red Perma-SHIELD coated cutter head with two carbide flutes.
Technical diagram showing a cross-section of a wood cut, indicating a specific slot width of 15/32 inch and a cutting depth of 7/8 inch for model number 04-128.
Retail packaging for the Freud 04-128 Double Flute Straight Bit, featuring the red tool in a clear blister pack and highlighting the 15/32 inch diameter ideal for undersized plywood dadoes.
3D computer graphic showing a block of wood with a precise, square channel groove cut into the top surface, illustrating the profile created by the straight bit for joinery.
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.
Studio product shot of the Freud 04-128 double flute straight router bit, featuring a standard 1/4-inch silver shank and a red Perma-SHIELD coated cutter head with two carbide flutes.
Technical diagram showing a cross-section of a wood cut, indicating a specific slot width of 15/32 inch and a cutting depth of 7/8 inch for model number 04-128.
Retail packaging for the Freud 04-128 Double Flute Straight Bit, featuring the red tool in a clear blister pack and highlighting the 15/32 inch diameter ideal for undersized plywood dadoes.
3D computer graphic showing a block of wood with a precise, square channel groove cut into the top surface, illustrating the profile created by the straight bit for joinery.
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

Freud 04-128 15/32 Inch Diameter Double Flute Straight Router Bit 1/4 Shank TiCo Carbide Plywood Dado Grooving Joinery Wood Composites

Only 1 left
SKU: 04-128
$20.69

Description

Create Snug, Rattle-Free Plywood Joints with the Freud 15/32 Inch Double Flute Straight Router Bit

Achieve professional joinery results with the Freud 04-128 15/32 Inch Double Flute Straight Bit. This specific diameter is a game-changer for cabinet makers and woodworkers, designed to match the actual thickness of many "1/2-inch" plywood sheets, which often measure a true 15/32 inch. By cutting a groove that matches the exact thickness of your material, you ensure a tight, glue-ready fit without gaps or loose panels. Crafted from Freud's exclusive TiCo Hi-Density Carbide, this bit is engineered to withstand high heat and maintain a razor-sharp edge up to four times longer than standard cutters.

Beyond its specialized sizing, the 04-128 delivers superior finish quality and versatility. Its computer-balanced double flute geometry features precision-ground hook and shear angles that slice cleanly through wood fibers, minimizing vibration and leaving a smooth surface that requires little to no sanding. The carbide tips are also relief-ground to facilitate safe and effective plunge cutting, making this tool perfect for starting dadoes, mortises, or internal cutouts in the center of a workpiece. Whether you are using a CNC machine, a hand-held router, or a table-mounted setup, this bit offers the precision required for high-quality cabinetry and furniture construction.

Key Features

  • Undersized Plywood Fit: 15/32 inch diameter creates tight, perfect-fit dadoes for nominal 1/2 inch plywood.
  • TiCo Hi-Density Carbide: Proprietary carbide blend delivers exceptional durability and extends cutting life in tough materials.
  • Double Flute Design: Two precision-ground edges ensure fast chip removal and a smooth, chatter-free finish.
  • Plunge Cutting Ready: Relieved tips allow for vertical drilling and starting grooves anywhere on the material.
  • 1/4 Inch Shank: Compatible with laminate trimmers, hand-held routers, and tabletop CNC machines.
  • Precision Geometry: Optimized shear angles reduce cutting resistance and prevent burning on the workpiece.

What's Included:

  • (1) 15/32 In. Double Flute Straight Bit with 1/4 In. Shank (Model 04-128)

Specifications

Model Number 04-128
Overall Diameter (D) 15/32 In.
Shank Diameter (A) 1/4 In.
Carbide Height (h) 7/8 In.
Overall Length (H) 2-3/8 In.
Number of Flutes 2 (Double Flute)
Max RPM 24,000 RPM
Material TiCo Hi-Density Carbide
Bit Type Straight Plunge
Application Material Wood, Plywood, Composites
Pro-Tip: Before cutting dadoes for your shelving project, measure your plywood with calipers. "1/2-inch" plywood is rarely exactly 0.5 inches. If your plywood measures closer to 0.46" or 0.47", this 15/32" bit is the perfect choice for a snug fit. If your plywood is a true 0.50", use a standard 1/2" bit instead.