CMT 823.332.11 Slot Cutter is a 3-flute, carbide-tipped routing bit engineered for precise groove and slot cutting in woodworking and panel joinery applications. Designed for use without an arbor, this 1 7/8" diameter slot cutter produces clean, consistent 1/8" wide slots - ideal for spline routing, biscuit groove work, panel connector installation, and T-slot cutting in solid wood, plywood, MDF, and a wide range of sheet materials. With a right-hand rotation and an 8mm bore, this CMT slot cutter is built to deliver repeatable results in both handheld router and router table setups.

Key Features

• 3-Flute Carbide-Tipped Cutting Edge - Three hardmetal (HW) cutting teeth distribute cutting load evenly, reducing vibration and delivering smoother slot walls with less tearout compared to single- or double-flute designs.
• 1/8" Teeth Thickness - Produces a precise 1/8" wide groove in a single pass, eliminating the need for multiple setups or repeated passes when cutting standard spline and connector slots.
• 1 7/8" Cutting Diameter - Provides a slot depth suited to common panel joinery hardware and spline applications, giving the installer the reach needed for consistent, properly seated connections.
• 0.051" Plate Thickness - The slim plate body minimizes material removal and heat buildup at the cutting zone, extending tool life and reducing the risk of burning or scorching workpieces.
• Right-Hand Rotation (RH) - Compatible with standard router collets and arbors, making this bit straightforward to mount and use on conventional routing equipment without special tooling.
• 8mm Bore - Sized to fit CMT and compatible slot cutter arbors precisely, ensuring the bit runs true and concentrically for accurate, repeatable groove depth and width.
• Hardmetal (HW) Carbide Material - Industrial-grade carbide construction resists wear when cutting hardwoods, softwoods, MDF, chipboard, melamine, laminates, and plastics, maintaining edge sharpness over extended use.

Why This Product

• The 1/8" cutting width matches standard spline, biscuit connector, and panel joinery hardware dimensions directly - meaning fewer adjustments and a more reliable fit straight from the router.
• A 3-flute configuration means each pass through the material is supported by more cutting edges than a 2-flute alternative, resulting in cleaner groove walls and reduced chipping in materials like melamine and laminate-faced sheet goods.
• The 8mm bore is sized for precision arbor mounting, so the cutter runs with minimal runout - critical when cutting narrow 1/8" slots where even slight deviation can cause a loose or misaligned joint.
• Hardmetal (HW) carbide construction means this slot cutter holds its edge across a broad range of materials - from solid hardwood and softwood to MDF, chipboard, and plastics - without requiring frequent resharpening or replacement.

Specifications

• Manufacturer Part Number: 823.332.11
• Brand: CMT Orange Tools
• Cutting Diameter: 1 7/8"
• Bore Diameter: 8mm
• Teeth Thickness: 1/8"
• Plate Thickness: 0.051"
• Number of Teeth: 3
• Rotation: Right-Hand (RH)
• Blade Material: Hardmetal (HW) Carbide
• Product Type: Slot Cutter (without arbor)

Approved Applications

• T-slot cutting in wood and composite panels
• Spline groove routing for panel alignment and reinforcement
• Biscuit slot cutting in solid hardwood and softwood
• Panel joinery and Striplox-style connector installation
• Groove routing in MDF, chipboard, plywood, and melamine
• Slot cutting in laminates and plastics