Freud 16-108 Router Bit 1-1/4″ (Dia.) Spoilboard Surfacing & Mortising Bit

The Freud 16-108 1-1/4″ Spoilboard Surfacing & Mortising Router Bit is a versatile cutting tool designed for both mortising operations and spoilboard surfacing. With a 1/2″ shank and a 1-1/4″ cutting diameter, this bit delivers smooth, splinter-free results when routing in plywood, hardwood, softwood, and composite materials. Whether you’re working with a handheld router, table-mounted unit, or CNC machine, this bit is engineered to handle precise mortises for hinges and hardware or flatten your CNC spoilboard for improved accuracy in future projects.

Engineered with a down shear cutting geometry, the bit pushes wood fibers downward during the cut to prevent tear-out and leave a clean top surface. The deep center gullets provide excellent chip evacuation, especially important during surface planing and mortising operations. Finished with Freud’s Perma-SHIELD® non-stick coating, the bit resists heat and pitch buildup, helping it stay sharp and effective through long runs in tough materials.

Freud 1-1/4″ (Dia.) Spoilboard Surfacing & Mortising Bit At a Glance

• Down Shear Design: Promotes clean top surfaces by pushing fibers downward during cutting
• Deep Center Gullets: Improves chip removal and prevents clogging in high-volume cuts
• Perma-SHIELD® Coating: Reduces pitch buildup and heat for longer tool life and smoother operation
• CNC and Router Compatible: Can be used in handheld, table-mounted, or CNC routers
• Multi-Use Design: Performs both spoilboard surfacing and precision mortising in a wide range of materials
• 1-1/4″ Diameter Cutting Edge: Allows wide, efficient passes for surfacing spoilboards or routing dados

Markets

• CNC Woodshops Excellent for flattening spoilboards or cutting accurate mortises with minimal cleanup.
• Cabinetry & Millwork Shops Used to cut clean dados and hinge pockets across plywood, MDF, and hardwood panels.
• Furniture Manufacturing Ideal for joinery work or cleaning up large panel surfaces.
• On-Site Finish Carpentry Capable of routing mortises for door hardware or surface trimming using a portable router.
• Educational Woodshops & Trade Schools Allows students to learn spoilboard maintenance and mortising techniques with one tool.
• Sign Making & CNC Cutting Businesses Helps maintain flat, accurate surfaces on CNC spoilboards used for engraving or carving.
• Municipal Maintenance Crews Useful for door repairs, cabinetry work, and prepping surfaces during renovations.

This bit is particularly useful in CNC woodworking environments where precision and consistency matter, but it’s equally capable in field or shop work using portable routers. It’s a practical option for furniture builders, trim installers, and cabinetry shops who need to alternate between routing clean joinery and flattening spoilboards without switching tools.

Freud 16-108 Router Bit 1-1/4″ (Dia.) Spoilboard Surfacing & Mortising Bit Features

• Down shear design on most bits for clean top surfaces
• Deep center gullets for fast chip removal
• Use on CNC, Hand-held and Table-Mounted Portable Routers
• Available with top bearings to suit popular routing jigs
• Freud Perma-SHIELD® Coating
• Ideal for spoilboard surfacing

Freud 16-108 Router Bit 1-1/4″ (Dia.) Spoilboard Surfacing & Mortising Bit Ideal For

• Spoilboard Surfacing
• Mortising hinges & hardware
• Dadoes

Freud 16-108 Router Bit 1-1/4″ (Dia.) Spoilboard Surfacing & Mortising Bit Cuts

• Veneered Plywod
• Hardwoods
• Softwoods
• Composites

Freud 16-108 Router Bit 1-1/4″ (Dia.) Spoilboard Surfacing & Mortising Bit Specifications

• Number of Cutters: 2
• Maximum RPM: 18,000
• Carbide Height: 1/2″
• Overall Diameter: 1-1/4″
• Overall Length: 2-3/8″
• Shank Diameter: 1/2″

Why Woodworkerss Use the Freud 1-1/4″ (Dia.) Spoilboard Surfacing & Mortising Bit

The Freud 16-108 is a solid option when you’re looking for a spoilerboard surfacing bit that can double as a mortising and dado routing tool. It’s commonly referred to as a surfacing bit, flycutter, or mortising bit depending on the task at hand. Tradespeople appreciate its versatility when space or time doesn’t allow for constant bit changes. Whether you’re setting up a new CNC machine or maintaining flat work surfaces for accurate cuts, this bit is a trusted tool to have in your setup.