CMT 822.324.11A Slot Cutter by CMT is a precision three-wing carbide-tipped router blade engineered for cutting clean, accurate slots and grooves in a wide range of materials. Designed for use with CMT 824 series slot cutter arbors, this 1 7/8" diameter cutter handles biscuit joinery, spline grooves, T-molding installation, and tongue-and-groove panel joinery with consistent, repeatable results. The right-hand rotation blade features micrograin carbide tips, an anti-kickback body, and CMT's signature non-stick PTFE coating - making it a reliable choice for woodworkers, cabinetmakers, and shop professionals who demand accurate horizontal groove routing in solid wood, sheet goods, and composite panel materials.

Key Features

• CMT Orange Shield Non-Stick PTFE Coating - prevents heat buildup, reduces pitch and resin accumulation, and protects against corrosion, extending the usable life of the cutter between sharpenings.
• Micrograin Carbide Tips - a denser, finer carbide grain structure delivers sharper, longer-lasting cutting edges that stay true through more passes in hardwood, softwood, MDF, and laminate materials.
• Anti-Kickback Body Design - limits the maximum bite the cutter can take on any given pass, reducing the risk of dangerous kickback events and giving operators greater control during routing operations.
• Three-Wing (3-Tooth) Configuration - three evenly spaced carbide wings provide balanced cutting forces, smoother slot surfaces, and reduced vibration compared to single- or dual-wing designs.
• 1/4" Shank Compatibility - fits a wide range of standard handheld routers, router tables, and CNC routing machines equipped with a 1/4" collet, making this blade broadly adaptable across common shop setups.
• 3/32" Teeth Thickness with 12.7mm Cutting Depth - produces a narrow, precisely sized slot suitable for splines, biscuits (when paired with the correct arbor bearing), and T-molding channels, with enough depth reach for most joinery applications.
• 0.051" Plate Thickness - the thin plate minimizes material waste and friction drag through the cut, contributing to cleaner slot walls and reduced motor load.

Why This Product

• The anti-kickback design and micrograin carbide tips make this slot cutter a strong choice for professional woodworkers and cabinetmakers who need both safety and edge longevity when cutting grooves in hardwood, plywood, MDF, and laminate panels.
• With a 1/4" shank and 1 7/8" cutting diameter, this blade is compatible with a broad range of handheld routers, router table setups, and CNC machines - giving shops flexibility without requiring specialized tooling.
• The CMT Orange Shield non-stick PTFE coating actively resists resin and pitch buildup during extended routing sessions, reducing cleaning downtime and maintaining cut quality over a longer service interval.
• The nearly infinite application range - from biscuit slots and spline grooves to T-molding channels and tongue-and-groove joinery - means this single cutter can serve multiple project types when paired with the appropriate CMT arbor and bearing combination.

Specifications

• Manufacturer Part Number: 822.324.11A
• Brand: CMT Orange Tools
• Diameter: 1 7/8"
• Cutting Depth: 12.7mm
• Teeth Thickness: 3/32"
• Total Length: 2 13/32"
• Plate Thickness: 0.051"
• Shank: 1/4"
• Number of Teeth: 3
• Material: HW (Carbide-Tipped)
• Rotation: Right-Hand (RH)
• Product Type: Slot Cutter

Approved Applications

• Biscuit slot cutting (use with 4mm / 5/32" cutting length for biscuit joints)
• Spline groove routing
• T-molding channel cutting
• Tongue-and-groove joinery
• Horizontal slot and groove cutting in solid hardwood and softwood
• Slot routing in plywood, MDF, chipboard, laminates, melamine, and plastic panels
• Panel joinery for cabinet and furniture construction