Freud Mortising Router Bit 16-108 1-1/4 Inch Down Shear (1/2 Inch Shank TiCo Carbide Perma-SHIELD 18000 RPM CNC Spoilboard Surfacing Dadoes)

Freud 16-108 1-1/4 Inch Down Shear Mortising Router Bit

The Freud 16-108 is a 1-1/4-inch overall diameter down shear mortising router bit engineered to cut smooth hinge pockets, flat-bottom dadoes, and leveled CNC spoilboards without surface tearout. Built with a heavy-duty 1/2-inch shank and a 1/2-inch carbide cutting height, this 2-cutter tool utilizes down-shear tip geometry to push top surface wood fibers downward into the cut. Tipped with TiCo™ Hi-Density Micrograin Carbide and protected by a thermal-resistant Perma-SHIELD® non-stick coating, it operates reliably at rotational speeds up to 18,000 RPM across CNC machinery, router tables, or handheld routers in solid hardwoods, softwoods, plywood, and veneers.

Best Used For:

• Hinge & Hardware Mortising: Routing shallow, clean-edged mortises for door hinges, lock faceplates, and architectural cabinet hardware.
• Flat-Bottom Dado & Groove Jointing: Machining wide, flat-bottomed dado channels and joinery slots in cabinet carcasses and shelving units.
• CNC Spoilboard Surfacing: Flattening and resurfacing MDF CNC router beds to maintain uniform z-axis calibration across large cutting areas.

Key Performance & Safety Features

• Down-Shear Cutter Geometry: Shear-angled carbide tips push surface wood fibers down to ensure a clean, tear-free top edge profile.
• Deep Clearance Center Gullets: Deeply milled chip gullets allow fast waste evacuation to prevent thermal pitch buildup and chip loading.
• TiCo™ Hi-Density Micrograin Carbide: Custom-formulated titanium-cobalt micrograin carbide edges deliver exceptional durability and sharpness retention.
• Perma-SHIELD® Non-Stick Coating: Protective red fluoropolymer coating guards against thermal friction, resin accumulation, and rust corrosion.
• Heavy-Duty 1/2-Inch Shank: Rigid 1/2-inch steel shank diameter minimizes tool flex, runout, and cutter vibration during high-speed routing.
• 18,000 RPM Maximum Speed Limit: Precision-balanced body design enables stable, chatter-free rotation under demanding feed rates.

What's Included

• (1) Freud 16-108 1-1/4" Down Shear Mortising Router Bit with 1/2" Shank

Technical Specifications

Brand Manufacturer Freud® Tools Model Part Number OEM SKU 16-108 Overall Cutting Diameter (D) 1.250 inches (1-1/4" / 31.8 mm) Shank Diameter (A) 0.500 inches (1/2" / 12.7 mm) Carbide Cutting Height (h) 0.500 inches (1/2" / 12.7 mm) Overall Tool Length (H) 2.375 inches (2-3/8" / 60.3 mm) Cutter Flute Angle Geometry Down-Shear Cutting Style Number of Carbide Cutters 2 Flute Carbide Cutters Maximum Operating Speed 18,000 RPM Body Protective Coating Red Perma-SHIELD® Non-Stick Fluoropolymer Cutter Metallurgy Material TiCo™ Hi-Density Micrograin Carbide Tipped Primary Machine Compatibility CNC Routers, Handheld Routers, Router Tables

Pro-Tip: Due to the down-shear angle pushing chips downwards into the pocket, make mortising passes using shallow depth increments to ensure chips clear freely out of deep mortises without pack-up.