Studio product shot of the Freud 12-135 double flute straight router bit, featuring a 1/2-inch silver shank and a red Perma-SHIELD coated cutter head with a 19/32 inch cutting diameter.
Technical diagram showing a cross-section of a wood cut, indicating a precise slot width of 19/32 inch and a cutting depth of 1-1/4 inch for model number 12-135.
3D computer graphic showing a block of wood with a clean, rectangular channel groove cut into the top surface, illustrating the grooving profile of the 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.
Graphic titled Materials showing four types of suitable workpieces for this bit: Veneered Plywood, Hardwoods, Softwoods, and Composites.
Graphic illustrating the compatible machinery for this router bit, displaying icons for a hand router, a table router, and a CNC machine.
Studio product shot of the Freud 12-135 double flute straight router bit, featuring a 1/2-inch silver shank and a red Perma-SHIELD coated cutter head with a 19/32 inch cutting diameter.
Technical diagram showing a cross-section of a wood cut, indicating a precise slot width of 19/32 inch and a cutting depth of 1-1/4 inch for model number 12-135.
3D computer graphic showing a block of wood with a clean, rectangular channel groove cut into the top surface, illustrating the grooving profile of the 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.
Graphic titled Materials showing four types of suitable workpieces for this bit: Veneered Plywood, Hardwoods, Softwoods, and Composites.
Graphic illustrating the compatible machinery for this router bit, displaying icons for a hand router, a table router, and a CNC machine.
Freud

Freud 12-135 19/32 Inch Double Flute Straight Router Bit 1/2 Shank TiCo Carbide Eclipse Grind for Undersized 5/8 Plywood Joinery Grooving

Only 2 left
SKU: 12-135
$22.97

Description

Achieve Perfect Joinery in 5/8 Inch Plywood with the Freud 19/32 Inch Straight Router Bit

Eliminate loose joints and sloppy dadoes in your cabinetry projects with the Freud 12-135 19/32 Inch Double Flute Straight Bit. While many plywood sheets are sold as "5/8-inch," their actual thickness is often undersized to exactly 19/32 inch. Using a standard 5/8" bit on this material results in gaps and weak glue bonds. This precision-ground tool is sized specifically to match this nominal thickness, ensuring a snug, rattle-free fit for shelves, partitions, and casework. Anchored by a rigid 1/2-inch shank, this bit provides the stability needed for smooth, vibration-free cutting in both CNC and manual routing setups.

The 12-135 is built to last, featuring Freud's exclusive TiCo Hi-Density Carbide. This specialized formulation fights heat and wear, keeping the cutting edge sharp up to four times longer than standard bits, even when routing abrasive plywood glues and composites. The bit features a computer-balanced double flute geometry with precise shear angles that slice through wood fibers for a splinter-free finish. Additionally, the "Eclipse Grind" tip geometry provides a center relief, allowing for efficient plunge cutting to start blind grooves or pockets anywhere on your workpiece.

Key Features

  • Precision Plywood Fit: 19/32 inch diameter creates perfectly sized dadoes for undersized 5/8" nominal plywood.
  • TiCo Hi-Density Carbide: Proprietary carbide blend resists heat and corrosion for maximum tool life.
  • Heavy-Duty Shank: 1/2-inch shank minimizes deflection and vibration for cleaner cuts.
  • Plunge Ready: Eclipse grind tip geometry allows for vertical drilling and pocketing applications.
  • Clean Finishes: Shear angles are engineered to reduce tearing and produce smooth edges in veneers and laminates.
  • Versatile Compatibility: Ideal for use in CNC, table-mounted, and hand-held routers.
  • Deep Cutting: 1-1/4 inch carbide height handles deep mortising and thick stock edge trimming.

What's Included:

  • (1) 19/32 In. Double Flute Straight Bit with 1/2 In. Shank (Model 12-135)

Specifications

Model Number 12-135
Overall Diameter (D) 19/32 In.
Shank Diameter (A) 1/2 In.
Carbide Height (h) 1-1/4 In.
Overall Length (H) 2-7/8 In.
Number of Cutters 2 (Double Flute)
Max RPM 16,000 RPM
Material TiCo Hi-Density Carbide
Bit Type Straight Plunge (Eclipse Grind)
Primary Application Undersized 5/8" Plywood Joinery
Pro-Tip: Before cutting dadoes for shelving, always measure the actual thickness of your plywood with calipers. "5/8-inch" plywood is almost never exactly 5/8". If your calipers read closer to 0.59" (approx. 19/32"), this is the specific bit you need for a glueless, friction-fit joint that offers superior structural strength.