The CMT 822.348.11 Slot Cutter is a precision 3-flute carbide-tipped cutting tool designed to mill clean, consistent slots for splines, biscuits, T-molding, and panel joinery applications. With a 1 7/8" cutting diameter and a 3/16" kerf width, this slot cutter delivers repeatable groove dimensions across a wide range of wood and composite materials - making it a reliable choice for both production shops and craftspeople who demand tight tolerances. Sold without an arbor, it pairs with the CMT 824 series arbors and mounts via an 8mm bore, keeping it compatible with a range of router setups.

Key Features

• 3-Flute Design - three cutting edges distribute cutting load evenly, reducing vibration and producing smoother slot walls in a single pass.
• 3/16" Teeth Thickness - mills a precise 3/16" kerf width suited for standard biscuit slots, spline grooves, and T-molding channels without additional setup changes.
• 1 7/8" Cutting Diameter with 12.7mm Cutting Depth - reaches into the workpiece to the full 12.7mm depth needed for most joinery and panel edge applications.
• 8mm Bore and 8mm Shank Compatibility - designed to mount directly onto compatible 8mm arbors, providing a secure, concentric fit that minimizes runout and keeps cuts accurate.
• HW Carbide Material - hard metal (carbide) construction retains a sharp cutting edge longer than high-speed steel, reducing the frequency of re-sharpening or replacement in demanding routing tasks.
• Right-Hand Rotation - matched to standard router rotation direction, ensuring safe engagement and consistent chip ejection when used in handheld routers, router tables, or CNC machines.
• 0.114" Plate Thickness - a thin, precisely machined body minimizes material removal beyond the intended slot width, keeping the surrounding workpiece surface clean and intact.

Why This Product

• The 3/16" slot width directly matches the standard dimensions required for biscuit joinery, spline routing, and T-molding installation - reducing the need for custom shimming or trial-and-error fitting.
• The carbide (HW) cutting edges hold their sharpness through repeated passes in hardwood, softwood, MDF, plywood, chipboard, laminates, melamine, and plastic - reducing downtime caused by dull tooling across varied material workflows.
• The arbor-free design lets woodworkers and fabricators use a single slot cutter across multiple arbor configurations (CMT 824 series), making it a versatile addition to an existing router bit system without requiring a dedicated, fixed-shank unit.
• With a right-hand rotation and a balanced 3-flute geometry, this slot cutter is compatible with handheld routers, router tables, and CNC routing machines - covering production and custom joinery applications from a single tool.

Specifications

• Manufacturer Part Number: 822.348.11
• Brand: CMT Orange Tools
• Product Type: Slot Cutter
• Cutting Diameter: 1 7/8"
• Bore Diameter: 8mm
• Shank: 8mm
• Cutting Depth: 12.7mm
• Teeth Thickness: 3/16"
• Plate Thickness: 0.114"
• Number of Teeth: 3
• Blade Material: HW (Carbide)
• Rotation: Right-Hand (RH)
• Arbor: Not included - requires CMT 824 series arbor

Approved Applications

• Biscuit slot cutting for panel and frame joinery
• Spline groove routing in solid hardwood and softwood
• T-molding and H-slot channel cutting
• Panel edge joinery in plywood, MDF, chipboard, laminates, and melamine
• Plastic fabrication slot milling