The CMT 822.316.11B Slot Cutter is a professional-grade carbide-tipped routing blade engineered for cutting precise horizontal slots and grooves in a wide range of wood and wood-composite materials. With a 1 7/8 in. cutting diameter, a 1/16 in. teeth thickness, and a 1/2 in. shank, this three-wing cutter is purpose-built for spline joinery, biscuit slot cutting, T-molding installation, and tongue and groove panel work. The anti-kickback design and CMT's micrograin carbide tips make it a reliable choice for both handheld router and router table applications where clean, repeatable slot profiles are essential.

Key Features

• Anti-Kickback Design - limits the depth of engagement with each cutting pass, reducing the risk of grabbing or sudden bit movement during routing, which improves operator safety and cut consistency.
• Micrograin Carbide Tips (HW Material) - a denser, harder carbide formulation holds a sharper cutting edge longer, delivering cleaner slot walls and extended tool life between sharpenings.
• CMT Orange Shield Non-Stick PTFE Coating - reduces pitch, resin, and heat buildup on the blade surface, protecting against corrosion and making cleanup faster after use.
• Three-Wing Cutting Geometry (3 Teeth) - three evenly spaced cutting teeth balance the load around the blade, producing smoother cuts and reducing vibration compared to single- or two-wing designs.
• 1/16 in. Teeth Thickness with 0.043 in. Plate - the thin kerf profile creates narrow, precise slots suited to biscuit joinery, spline fitting, and T-molding channels without removing unnecessary material.
• Right-Hand Rotation - matches standard router chuck direction, making this cutter compatible with virtually all handheld routers, router tables, and CNC routing machines without any adapter needed.
• 12.7 mm Cutting Depth - the 22 mm (7/8 in.) diameter bearing arbor system (CMT 824 series) enables up to 12.7 mm (1/2 in.) of usable cutting depth, giving you enough slot depth for most biscuit and spline joinery applications.
• 1/2 in. Shank - the full 1/2 in. shank diameter provides a rigid, secure collet fit that minimizes runout and bit deflection at routing speeds.

Why This Product

• The combination of anti-kickback design and micrograin carbide tips makes this slot cutter well-suited for woodworkers who need consistent, repeatable slot profiles in hardwood, softwood, plywood, MDF, and laminate materials without sacrificing safety.
• At just 1/16 in. teeth thickness, this cutter creates a narrow, controlled kerf ideal for biscuit slot cutting, spline grooves, and T-molding channels - applications where slot width precision directly affects joint tightness and fit.
• The CMT Orange Shield PTFE non-stick coating actively reduces heat and resin buildup during extended routing sessions, which helps maintain cut quality and extends the service life of the blade.
• Designed to work with CMT 824 series arbors that include a 22 mm bearing for guided cutting, this blade slots into a well-established system, making it easy to swap cutters or stack multiple blades for wider groove profiles.

Specifications

• Manufacturer Part Number: 822.316.11B
• Brand: CMT Orange Tools
• Diameter: 1 7/8 in.
• Cutting Depth: 12.7 mm
• Teeth Thickness: 1/16 in.
• Plate Thickness: 0.043 in.
• Total Length: 2 21/32 in.
• Shank: 1/2 in.
• Number of Teeth: 3
• Rotation: Right-Hand (RH)
• Blade Material: HW Micrograin Carbide
• Product Type: Slot Cutter

Approved Applications

• Biscuit Slot Cutting
• Spline Groove Routing
• T-Molding Installation
• Tongue and Groove Joinery
• Panel Joinery and Assembly
• T-Slot and H-Slot Cutting