CMT 822.332.11B Slot Cutter by CMT is a professional-grade three-wing slot cutter designed for routers, delivering precise horizontal slots and grooves for splines, biscuits, T-molding, and tongue and groove joinery. With a 1-7/8 in. cutting diameter, 1/8 in. teeth thickness, and a 1/2 in. shank, this carbide-tipped cutter is built for demanding woodworking applications in solid hardwood, plywood, MDF, and more. Its anti-kickback design, micrograin carbide tips, and PTFE non-stick coating make it a reliable choice for both handheld router and router table use.

Key Features

• Anti-Kickback Design - limits the depth of cut on each pass, reducing the risk of sudden bit grab and keeping the operator in control during groovecutting operations.
• Micrograin Carbide Tips (HW Material) - delivers a finer, denser carbide structure that stays sharp longer and produces cleaner slot edges across hardwoods, softwoods, and sheet goods.
• CMT Orange PTFE Non-Stick Coating - prevents pitch and resin buildup on the blade surface, reduces heat during cutting, protects against corrosion, and extends overall tool life between cleanings.
• Three-Wing (3-Tooth) Configuration - three cutting edges distribute the workload evenly, improving cut quality and reducing vibration compared to single-edge designs.
• 1-7/8 in. Cutting Diameter with 12.7mm Cutting Depth - sized to work with a 22mm (7/8 in.) diameter bearing arbor, enabling a cutting depth of up to 12.7mm (1/2 in.) for deep, consistent slots in a single pass.
• 1/8 in. Teeth Thickness / 0.051 in. Plate Thickness - produces a precise, narrow kerf for snug-fitting splines, biscuits, and T-molding without oversized gaps.
• Right-Hand Rotation - designed to match the standard rotation direction of handheld routers and router tables for safe, correct installation and operation.
• Compatible with CMT 824 Series Arbors - the 1/2 in. shank integrates directly with CMT slot cutter arbors for quick blade swaps and flexible depth adjustment.

Why This Product

• The anti-kickback geometry and three-wing carbide configuration work together to give woodworkers confident, controlled groovecutting in dense hardwoods and engineered panels alike - without sacrificing cut quality or edge clarity.
• At 1/8 in. teeth thickness, this cutter produces a kerf width perfectly suited for standard spline grooves, biscuit slots, and T-molding channels, eliminating the need for multiple passes or custom shimming setups.
• The PTFE orange coating keeps the blade running cooler and cleaner during extended production runs, reducing downtime from resin-clogged edges - especially when cutting melamine, MDF, or resinous softwoods.
• Designed for use as a blade only, this cutter pairs with a wide selection of CMT 824 series arbors, giving the user flexibility to configure cutting depth and bearing size for a broad range of slot and groove joinery tasks.

Specifications

• Manufacturer Part Number: 822.332.11B
• Brand: CMT Orange Tools
• Diameter: 1-7/8 in.
• Cutting Depth: 12.7mm
• Teeth Thickness: 1/8 in.
• Plate Thickness: 0.051 in.
• Total Length: 2-21/32 in.
• Shank: 1/2 in.
• Number of Teeth: 3
• Blade Material: HW (Micrograin Carbide)
• Rotation: Right-Hand (RH)
• Product Type: Slot Cutter

Approved Applications

• Slot and groove cutting for splines
• Biscuit slot cutting (use with 4mm / 5/32 in. cutting length for biscuit joints)
• T-molding installation channels
• Tongue and groove joinery
• Panel joinery and edge assembly
• H-slot and decorative groove routing