CMT Two-Flute Slot Cutter - 75 x 6.35/4.35 x 12mm by CMT is a precision-engineered slot cutting blade designed for use with the CMT 800.627 arbor, making it a purpose-matched component for horizontal grooving tasks in woodworking and panel fabrication. With a 2-61/64 in. outer diameter, a 1/4 in. cutting height, and a 12mm bore, this right-hand rotation cutter produces clean, consistent slots suited to biscuit joinery, spline grooving, T-slot and H-slot routing, and panel assembly work. The two-flute, carbide-tipped construction delivers smooth cutting performance across a wide range of solid and engineered wood materials, making it a dependable choice for cabinetmakers, furniture builders, and shop professionals who rely on repeatable slot depth and edge quality.

Key Features

• HW (Carbide-Tipped) Cutting Material - industrial-grade carbide tips stay sharp longer than high-speed steel, reducing the frequency of blade changes and maintaining cut quality over extended production runs.
• Two-Flute (Z2) Design - dual cutting edges deliver balanced cutting forces and smooth slot walls, minimizing tearout in hardwood, softwood, plywood, MDF, chipboard, laminates, and melamine.
• 75mm (2-61/64 in.) Outer Diameter - provides a generous cutting arc that stabilizes the blade during grooving passes, helping maintain consistent slot depth from the first cut to the last.
• 1/4 in. Cutting Height - precisely sized for standard biscuit slots, spline grooves, and T-slot profiles, eliminating the guesswork of achieving target slot depth.
• 12mm Bore with 4.35mm Hub Diameter - engineered specifically to pair with the CMT 800.627 slot cutter arbor, ensuring a secure, concentric fit that reduces vibration and chatter during operation.
• Right-Hand (RH) Rotation - compatible with standard router spindle direction, meaning no special setup or reversal is required on handheld routers, router tables, or CNC routing machines.
• CMT Orange Shield Non-Stick Coating - prevents heat buildup, resists pitch and resin accumulation on the blade body, and protects against corrosion, extending the service life of the cutter between cleanings and sharpenings.
• SinterHIP Industrial Chrome Carbide - carbide processed via Hot Isostatic Pressing (HIP) achieves a denser, more uniform grain structure that resists material failure and maintains cutting edge integrity through demanding grooving cycles.
• Tri-Metal Silver-Copper-Silver Brazing - a three-layer brazing bond secures the carbide tip to the blade body with exceptional strength, protecting against tip separation when cutting harder woods, composites, or abrasive engineered panels.
• Anti-Kickback Design - controls the maximum depth of cut per pass, minimizing kickback risk and giving operators greater confidence and safety during freehand and table-mounted routing operations.

Why This Product

• Purpose-matched for the CMT 800.627 arbor - this blade is engineered with the correct 12mm bore and hub dimensions to pair directly with the CMT 800.627 slot cutter arbor, eliminating fitment uncertainty and delivering a concentric, vibration-free assembly right out of the package.
• Consistent 1/4 in. slot depth for joinery reliability - the precisely ground 6.35mm cutting height produces uniform biscuit slots and spline grooves that align accurately across multiple workpieces, which is critical for tight-fitting panel joints and furniture assembly.
• Carbide tips with HIP processing for longer cutting life - the SinterHIP carbide formulation holds its edge longer than standard carbide, meaning fewer interruptions for blade changes when working through production quantities of hardwood, plywood, MDF, or melamine panels.
• Designed for routers, router tables, and CNC machines - the right-hand rotation and standard bore size make this cutter compatible with a broad range of shop equipment, offering flexibility across different workflow setups without requiring dedicated tooling for each machine.

Specifications

• Manufacturer Part Number: 822.020.11
• Brand: CMT Orange Tools
• Diameter: 2-61/64 in. (75mm)
• Bore Diameter: 12mm
• Cutting Height: 1/4 in. (6.35mm)
• Hub Diameter: 4.35mm
• Number of Teeth: 2
• Rotation: Right-Hand (RH)
• Blade Material: HW (Carbide-Tipped)
• Compatible Arbor: CMT 800.627
• Product Type: Two-Flute Slot Cutter

Approved Applications

• T-Slot and H-Slot Cutting
• Biscuit Slot Cutting
• Spline Groove Routing
• Panel Joinery
• Solid Hardwood
• Softwood
• Plywood
• MDF
• Chipboard
• Laminates
• Melamine
• Plastic