The CMT 823.340.11 Slot Cutter is a precision 3-flute carbide-tipped routing tool designed for cutting clean, consistent slots in wood, composite panels, and laminates. With a 1 7/8 in. cutting diameter, 5/32 in. teeth thickness, and an 8mm bore, this right-hand rotation cutter is built for spline groove routing, panel joinery, and connector slot applications where accuracy and repeatability matter most. Engineered from HW (carbide) material and sized for compatibility with 8mm arbors, it delivers professional-grade performance in handheld router, router table, and CNC routing setups.

Key Features

• 3-Flute Cutting Configuration - three carbide cutting edges provide more cuts per rotation compared to single- or double-flute designs, producing smoother slot walls and reducing splintering in hardwoods, softwoods, and sheet goods.
• 1 7/8 in. Cutting Diameter - matched to common slot-cutting applications including spline grooves and panel connector recesses, giving the cutter a well-defined reach without excessive material removal per pass.
• 5/32 in. Teeth Thickness - cuts a precise 5/32 in. wide slot in a single pass, eliminating the need for multiple passes or adjustments when targeting that specific groove width.
• 0.081 in. Plate Thickness - a slim, accurately ground plate ensures the kerf width stays consistent from cut to cut, which is critical for tight-fitting splines and panel connectors.
• 8mm Bore Diameter - sized to fit 8mm slot cutter arbors, allowing straightforward integration into standard arbor setups without adapter rings or modifications.
• HW Carbide Material - hard-wearing tungsten carbide construction maintains a sharp cutting edge through extended production runs in hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic.
• Right-Hand (RH) Rotation - compatible with the standard rotation direction of virtually all handheld routers, router tables, and CNC routing machines, so no special spindle configuration is needed.
• No-Arbor Design - sold as the cutter blade only, giving woodworkers and fabricators the flexibility to mount it on an existing arbor or combine it with other cutters in a stacked assembly for custom groove widths.

Why This Product

• The 5/32 in. slot width and 1 7/8 in. diameter are purpose-built for spline groove routing and panel connector installation - tasks that demand exact, repeatable slot geometry that off-size cutters cannot reliably deliver.
• The 3-flute carbide construction balances cutting speed with finish quality, making it a practical choice for both production shop environments and detailed one-off joinery work in solid hardwood and engineered panels.
• The 8mm bore accepts a wide range of compatible arbors, so operators can swap the cutter into an existing slot cutter arbor setup without purchasing dedicated tooling for a single bit size.
• Selling the cutter head separately from the arbor lets fabricators stack multiple cutters or adjust spacer combinations on one arbor - a cost-effective approach when a range of slot depths or staggered configurations is needed.

Specifications

• Manufacturer Part Number: 823.340.11
• Brand: CMT Orange Tools
• Cutting Diameter: 1 7/8 in.
• Bore Diameter: 8mm
• Teeth Thickness: 5/32 in.
• Plate Thickness: 0.081 in.
• Number of Teeth: 3
• Rotation: Right-Hand (RH)
• Blade Material: HW (Carbide)
• Product Type: Slot Cutter (without arbor)

Approved Applications

• Spline groove routing in solid hardwood and softwood
• Panel joinery and connector slot installation
• T-slot cutting in MDF, plywood, and chipboard
• Striplox and similar panel connector installation
• Slot cutting in laminates, melamine, and plastic panels