A professional studio photograph of the Freud 34-138 rounding over router bit, showcasing its red-coated head with four Quadra-Cut carbide cutting edges, a top-mounted ball bearing pilot, and a polished 1/2-inch steel shank.
A technical diagram for the Freud 34-138 bit, showing a cross-section of a wood block with a precise 1-3/8 inch radius rounding-over profile applied to the top corner.
A technical diagram illustrating the versatility of the bit; it shows a standard round-over profile on the left and a decorative beading profile on the right, achieved by swapping to a 1/8-inch smaller ball bearing and step washer.
An action photograph of a woodworker using a hand-held router equipped with a Freud rounding over bit to create a smooth, curved profile on the edge of a light-colored wooden workpiece.
A professional studio photograph of the Freud 34-138 rounding over router bit, showcasing its red-coated head with four Quadra-Cut carbide cutting edges, a top-mounted ball bearing pilot, and a polished 1/2-inch steel shank.
Freud Quadra Cut Router Bits promotional video
A professional studio photograph of the Freud 34-138 rounding over router bit, showcasing its red-coated head with four Quadra-Cut carbide cutting edges, a top-mounted ball bearing pilot, and a polished 1/2-inch steel shank.
A technical diagram for the Freud 34-138 bit, showing a cross-section of a wood block with a precise 1-3/8 inch radius rounding-over profile applied to the top corner.
A technical diagram illustrating the versatility of the bit; it shows a standard round-over profile on the left and a decorative beading profile on the right, achieved by swapping to a 1/8-inch smaller ball bearing and step washer.
An action photograph of a woodworker using a hand-held router equipped with a Freud rounding over bit to create a smooth, curved profile on the edge of a light-colored wooden workpiece.
A professional studio photograph of the Freud 34-138 rounding over router bit, showcasing its red-coated head with four Quadra-Cut carbide cutting edges, a top-mounted ball bearing pilot, and a polished 1/2-inch steel shank.
Freud Quadra Cut Router Bits promotional video
Freud

Freud Router Bit 34-138 1-3/8 Inch Radius Rounding Over Edge (1/2 Inch Shank TiCo Carbide Quadra-Cut 12000 Max RPM Woodworking Furniture)

Only 1 left
SKU: 34-138
$147.99 USD

Description

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Freud 34-138 1-3/8 Inch Radius Rounding Over Edge Router Bit

The Freud 34-138 is a 3-1/4-inch overall diameter rounding-over router bit engineered to shape 1-3/8-inch radiused smooth edges on heavy furniture, doors, and architectural moldings. Featuring a 1/2-inch shank and Freud’s patented Quadra-Cut™ 4-cutter design, this tool uses two up-shearing and two down-shearing carbide blades to eliminate end-grain tearout and surface fuzzing. Tipped with TiCo™ Hi-Density Micrograin Carbide and coated with heat-resistant Perma-SHIELD®, it operates safely at speeds up to 12,000 RPM across solid hardwoods, softwoods, plywood, and composites in CNC machines, router tables, or handheld routers.

Best Used For:

  • Heavy Furniture & Tabletop Edge Profiling: Shaping large 1-3/8-inch smooth radiused edges on solid hardwood dining tables, desks, and countertop borders.
  • Architectural Door & Molding Shaping: Milling tearout-free rounded profiles on interior wood doors, fireplace mantels, and heavy casing trim.
  • Cross-Grain Cabinetry Edge Softening: Slicing smooth decorative border curves across abrasive end-grain and cabinet-grade sheet stock without post-cut sanding.

Key Performance & Safety Features

  • Quadra-Cut™ 4-Cutter Technology: Employs 2 up-shear and 2 down-shear carbide cutters to shear wood fibers simultaneously from top and bottom for a splinter-free finish.
  • TiCo™ Hi-Density Micrograin Carbide: Custom titanium-cobalt carbide formulation extends cutting life and maintains high edge sharpness under heavy production loads.
  • Perma-SHIELD® Non-Stick Coating: Protective red fluoropolymer coating guards against heat buildup, pitch accumulation, and thermal corrosion.
  • Dual-Profile Convertible Versatility: Converts from a rounding-over profile to a decorative beading bit by swapping to a 3/8-inch outer diameter pilot bearing.
  • Precision Pilot Ball Bearing: Includes a 1/2-inch outer diameter steel guide bearing for consistent, uniform tracking along straight or curved edges.
  • Computer-Balanced Anti-Vibration Body: Precision body balancing eliminates chatter and ensures smooth rotational tracking at speeds up to 12,000 RPM.

What's Included

  • (1) Freud 34-138 1-3/8" Radius Rounding Over Router Bit with 1/2" Shank
  • (1) 1/2" Outer Diameter Pilot Ball Bearing

Technical Specifications

Brand Manufacturer Freud® Tools
Model Part Number OEM SKU 34-138
Profile Radius Dimension (R) 1.375 inches (1-3/8" / 34.9 mm)
Overall Cutting Diameter (D) 3.250 inches (3-1/4" / 82.6 mm)
Shank Diameter (A) 0.500 inches (1/2" / 12.7 mm)
Carbide Cutting Height (h) 1.563 inches (1-9/16" / 39.7 mm)
Overall Tool Length (H) 3.375 inches (3-3/8" / 85.7 mm)
Pilot Bearing Diameter (B) 0.500 inches (1/2" / 12.7 mm)
Number of Carbide Cutters 4 Cutters (Quadra-Cut 2 Up-Shear / 2 Down-Shear)
Maximum Operating Speed 12,000 RPM
Body Protective Coating Red Perma-SHIELD® Non-Stick Fluoropolymer
Cutter Metallurgy Material TiCo™ Hi-Density Micrograin Carbide Tipped
Primary Machine Compatibility CNC Routers, Router Tables, Handheld Routers

Pro-Tip: Due to the large 3-1/4 inch overall cutting diameter, dial down your variable-speed router to a maximum of 12,000 RPM and take 2 or 3 shallow incremental passes to ensure operator safety and achieve a glass-smooth finish on dense hardwoods.