CMT Spoilboard Surfacing Router Cutter with Insert Knives - 1 1/2 in. Diameter by CMT is a heavy-duty CNC surfacing tool engineered for fast, efficient material removal across large surface areas. Designed specifically for spoilboard resurfacing and panel flattening on CNC router machines, this insert cutter leaves an improved finish at the bottom of the cut while handling soft and hardwood, particle board, and MDF with equal reliability. The replaceable 4-sided micrograin carbide insert knives keep operating costs low over the life of the tool - making this a practical choice for production shops and dedicated CNC routing operations.

Key Features

• Super strength steel body - provides a rigid, durable platform that resists deflection during aggressive surfacing passes, supporting consistent cut quality across the full face width.
• 4-sided micrograin carbide insert knives - each insert offers four usable cutting edges, so when one edge dulls you simply rotate or replace it rather than resharpening the entire cutter, reducing downtime and tooling cost.
• 3-flute cutting geometry with 1 1/2 in. diameter - three evenly spaced teeth distribute cutting load across the full cutting circle, enabling rapid stock removal over a wide footprint while maintaining a smooth, flat surface finish.
• 15/32 in. cutting height - provides sufficient depth capacity to resurface a spoilboard in a controlled number of passes without excessive step-downs, keeping the workflow efficient.
• 1/2 in. shank - the standard 1/2 in. collet size fits the majority of CNC router spindles and router table setups, ensuring broad machine compatibility and secure tool holding during high-feed surfacing runs.
• Right-hand rotation (RH) - matches the standard spindle direction of CNC routers and router tables, allowing straightforward installation without adapter modifications.
• 60 mm total length - a compact overall profile keeps the cutter close to the collet for improved rigidity and reduced vibration during surfacing operations.
• Compatible with soft and hardwood, particle board, and MDF - the micrograin carbide insert grade handles a broad range of workpiece materials, from solid lumber to manufactured panels, without needing a tool change.

Why This Product

• Built for CNC spoilboard resurfacing: this cutter is specifically designed for the task of restoring a flat, level spoilboard surface on a CNC router - the wide 1 1/2 in. cutting diameter and 3-tooth layout cover ground quickly and leave the board ready for precision work.
• Replaceable inserts lower long-term tooling costs: because each 4-sided insert can be indexed to a fresh edge instead of requiring full cutter replacement or offsite sharpening, shops save both money and machine downtime between surfacing sessions.
• Versatile panel and surface work: the ability to cut solid hardwood, softwood, MDF, and particle board from a single cutter means one tool handles multiple panel flattening and large surface facing tasks without swapping bits for different materials.
• Fits standard CNC and router table setups: the 1/2 in. shank and right-hand rotation align with the tooling specifications of most CNC router machines and router tables, making this a drop-in solution for shops already running standard collet sizes.

Specifications

• Manufacturer Part Number: 663.015.11
• Brand: CMT Orange Tools
• Product Type: Spoilboard Surfacing Router Cutter with Insert Knives
• Diameter: 1 1/2 in.
• Cutting Height: 15/32 in.
• Total Length: 60 mm
• Shank: 1/2 in.
• Number of Teeth: 3
• Insert Material: Micrograin Carbide (HW)
• Body Material: Super Strength Steel
• Rotation: Right-hand (RH)

Approved Applications

• CNC Spoilboard Surfacing
• Large Surface Facing
• Panel Flattening
• Fast Material Removal on CNC Routers
• Solid Hardwood Surfacing
• Softwood Surfacing
• MDF and Particle Board Flattening

Frequently Asked Questions

What materials can this spoilboard surfacing cutter handle?

This cutter is designed for use on soft and hardwood, particle board, and MDF. The 4-sided micrograin carbide insert knives are suited to these common woodworking and panel materials without requiring a different bit for each substrate.

How many usable cutting edges does each insert provide?

Each insert has 4 sides, meaning 4 usable cutting edges per insert. When one edge becomes dull, the insert can be indexed to expose a fresh edge, significantly extending the service life of each insert before replacement is needed.

Is this cutter compatible with standard CNC router spindles and router tables?

Yes. The cutter features a 1/2 in. shank and right-hand rotation, which are the standard specifications for most CNC router machines and router table setups. It fits directly into a standard 1/2 in. collet without adapters.

What is the cutting depth capacity of this router cutter?

The cutting height is 15/32 in., which defines the maximum depth of cut available in a single pass. For spoilboard resurfacing and panel flattening, this capacity allows efficient material removal with controlled step-down passes to achieve a flat, finished surface.