The CMT Slot Cutter 1-7/8" x 3/16" with 1/2" Shank and 3-Tooth Design is a precision-ground carbide-tipped routing blade engineered for cutting clean, consistent slots and grooves in a wide range of wood and composite materials. Designed for use with CMT 824 series arbors, this right-hand rotation cutter delivers reliable performance for spline grooves, biscuit joints, T-molding installations, and tongue-and-groove joinery. With a 1-7/8" cutting diameter, a 3/16" teeth thickness, and a plate thickness of 0.114", this slot cutter is built for woodworkers and cabinetmakers who demand accuracy and durability from every pass. The micrograin carbide tips and anti-kickback geometry make it equally at home on a handheld router, router table, or CNC routing machine.

Key Features

• Anti-Kickback Design - limits the depth of cut during unexpected catches, reducing the risk of dangerous tool movement and giving the operator greater control during slotting and grooving operations.
• Micrograin Carbide Tips (HW Material) - the finer grain structure of industrial-grade carbide resists chipping and wear, maintaining a sharp cutting edge longer so you spend less time changing blades and more time cutting.
• CMT Orange Shield Non-Stick PTFE Coating - the proprietary PTFE finish prevents pitch, resin, and adhesive buildup on the blade body, reducing heat generation, protecting against corrosion, and extending overall tool life between cleanings.
• 3-Tooth Configuration - the three-wing cutting geometry produces smooth, balanced cuts in grooves for splines, biscuits, T-molding, and tongue-and-groove joints, minimizing tearout and ensuring consistent slot width throughout the cut.
• 12.7mm (1/2") Maximum Cutting Depth - compatible with CMT 22mm (7/8") diameter bearing arbors, this cutting depth accommodates a broad range of panel joinery and slot-cutting applications without requiring additional passes.
• Right-Hand Rotation - designed for standard router spindle rotation, ensuring drop-in compatibility with conventional handheld routers, router tables, and CNC machines without any setup adjustments.
• 1/2" Shank - the larger-diameter shank provides a more rigid connection to the router collet, reducing vibration during slotting operations and contributing to cleaner, more precise groove geometry.

Why This Product

• The near-infinite versatility of this slot cutter - spanning biscuit joints, spline grooves, T-molding channels, and tongue-and-groove profiles - means a single blade handles a broad range of joinery tasks that would otherwise require multiple specialized bits.
• The PTFE non-stick coating and micrograin carbide tips work together to extend blade life and reduce downtime, making this cutter a cost-effective choice for production environments and frequent shop use.
• The anti-kickback design makes this cutter safer to operate in demanding grooving applications, particularly when working on edge cuts in hardwood, plywood, MDF, or laminated panels where unexpected material resistance is common.
• At a 3/16" cutting width with a 0.114" plate thickness, this blade is sized for standard biscuit and spline slot widths, eliminating the need for multiple passes or shimming to achieve a proper-fitting joint.

Specifications

• Manufacturer Part Number: 822.348.11B
• Brand: CMT Orange Tools
• Diameter: 1-7/8"
• Cutting Depth: 12.7mm
• Teeth Thickness: 3/16"
• Plate Thickness: 0.114"
• Total Length: 2-21/32"
• Shank: 1/2"
• Number of Teeth: 3
• Rotation: Right-Hand (RH)
• Blade Material: HW (Micrograin Carbide)
• Product Type: Slot Cutter

Approved Applications

• Biscuit Slot Cutting - use with 4mm (5/32") cutting length configuration for standard biscuit joints
• Spline Groove Routing - cutting aligned grooves for loose spline joinery in solid wood panels
• T-Molding Slot Installation - creating precise horizontal channels in cabinet edges and countertop substrates
• Tongue-and-Groove Joint Production - routing matching profiles in solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic
• Panel Joinery - horizontal slot cutting in edge-joined boards and cabinet components