A studio product view of the Freud 16-504 top bearing mortising router bit, featuring a bright red head with sharp silver carbide cutting edges, a top-mounted ball bearing, and a polished steel shank.
Product packaging for the Freud 16-504 mortising bit, showing the red carbide-tipped tool in a clear plastic container with labels indicating its 3/4-inch diameter and 1/4-inch shank size.
Technical diagram for the Freud 16-504 top bearing mortising bit showing a cross-section of a 3/4-inch wide by 3/4-inch deep cut made into a wood workpiece using a template.
A technical illustration demonstrating how the Freud top bearing router bit is used to create a precise, flat-bottomed recess in wood to flush-mount a metal hinge.
A studio product view of the Freud 16-504 top bearing mortising router bit, featuring a bright red head with sharp silver carbide cutting edges, a top-mounted ball bearing, and a polished steel shank.
A studio product view of the Freud 16-504 top bearing mortising router bit, featuring a bright red head with sharp silver carbide cutting edges, a top-mounted ball bearing, and a polished steel shank.
Product packaging for the Freud 16-504 mortising bit, showing the red carbide-tipped tool in a clear plastic container with labels indicating its 3/4-inch diameter and 1/4-inch shank size.
Technical diagram for the Freud 16-504 top bearing mortising bit showing a cross-section of a 3/4-inch wide by 3/4-inch deep cut made into a wood workpiece using a template.
A technical illustration demonstrating how the Freud top bearing router bit is used to create a precise, flat-bottomed recess in wood to flush-mount a metal hinge.
A studio product view of the Freud 16-504 top bearing mortising router bit, featuring a bright red head with sharp silver carbide cutting edges, a top-mounted ball bearing, and a polished steel shank.
Freud

Freud Mortising Router Bit 16-504 3/4 Inch Top Bearing (1/4 Inch Shank Down Shear TiCo Carbide Perma-SHIELD 24000 RPM Template Hinges Dadoes)

Only 1 left
SKU: 16-504
$23.99 USD

Description

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Freud 16-504 3/4 Inch Top Bearing Down Shear Mortising Router Bit

The Freud 16-504 is a 3/4-inch overall cutting diameter shank-mounted top bearing mortising router bit engineered for precise template-guided hinge mortising, hardware pocketing, and dado jointing. Built with a 1/4-inch shank and a 3/4-inch carbide height, this 2-cutter tool utilizes down-shear tip geometry to press wood fibers downward during routing to prevent top-surface tearout. Tipped with TiCo™ Hi-Density Micrograin Carbide and sealed with a non-stick red Perma-SHIELD® coating, it operates reliably at rotational speeds up to 24,000 RPM across handheld routers, router tables, or CNC machinery in solid hardwoods, softwoods, plywood, and veneers.

Best Used For:

  • Template-Guided Hinge & Hardware Mortising: Routing identical hinge recesses and locksets using top-mounted pilot bearings against surface jigs.
  • Clean-Edge Dado & Groove Milling: Machining flat-bottomed dado channels and cabinet shelving grooves without splintering delicate face veneers.
  • Shallow Pattern & Pocket Routing: Cutting intricate interior cutouts and flush hardware pockets using custom wooden or acrylic templates.

Key Performance & Safety Features

  • Shank-Mounted Precision Top Bearing: Smooth-running ball bearing rides directly against template guides for exact, repeatable mortise shapes.
  • Down-Shear Cutter Geometry: Angled carbide tips force surface wood fibers down to guarantee clean, splinter-free top edges.
  • TiCo™ Hi-Density Micrograin Carbide: High-density carbide tips maintain extreme edge sharpness and resist abrasive wear across dense composite woods.
  • Perma-SHIELD® Non-Stick Coating: Protective fluoropolymer coating reduces operating friction, pitch accumulation, and rust corrosion.
  • Deep Waste-Clearance Center Gullets: Milled center gullet design ejects wood chips quickly to prevent clogging, heat buildup, and scorching.
  • 24,000 RPM High-Speed Rating: Computer-balanced cutter body provides smooth, chatter-free passes at elevated spindle speeds.

What's Included

  • (1) Freud 16-504 3/4" Top Bearing Down Shear Mortising Router Bit with 1/4" Shank

Technical Specifications

Brand Manufacturer Freud® Tools
Model Part Number OEM SKU 16-504
Overall Cutting Diameter (D) 0.750 inches (3/4" / 19.1 mm)
Shank Diameter (A) 0.250 inches (1/4" / 6.4 mm)
Carbide Cutting Height (h) 0.750 inches (3/4" / 19.1 mm)
Overall Tool Length (H) 2.438 inches (2-7/16" / 61.9 mm)
Pilot Bearing Location Top Bearing / Shank-Mounted Pilot Bearing
Cutter Flute Angle Geometry Down-Shear Cutting Style
Number of Carbide Cutters 2 Flute Carbide Cutters
Maximum Operating Speed 24,000 RPM
Body Protective Coating Red Perma-SHIELD® Non-Stick Fluoropolymer
Cutter Metallurgy Material TiCo™ Hi-Density Micrograin Carbide Tipped
Primary Machine Compatibility Handheld Routers, Router Tables, CNC Routers

Pro-Tip: Before starting your cut, ensure the top pilot bearing is clean and spins freely; a sticking pilot bearing can friction-burn template walls and introduce inaccuracy into your template mortising passes.