The CMT Slot Cutter 1-7/8" x 3/32" is a precision-engineered three-wing routing blade designed to cut clean, accurate slots and grooves in wood, panel products, and plastics. With a 1/2" shank, a 1 7/8" cutting diameter, and a 3/32" kerf width, this blade handles an impressive range of joinery tasks - from spline grooves and biscuit slots to T-molding channels and tongue and groove joints. Built from micrograin carbide with CMT's trademark non-stick PTFE coating, this slot cutter blade delivers consistent, low-friction cuts with reduced heat buildup and extended service life. Compatible with CMT 824 series arbors, it is a go-to choice for woodworkers, cabinet makers, and panel fabricators who demand repeatable, professional-quality results.

Key Features

• Three-Wing Carbide Design - 3 cutting teeth distribute load evenly across the cut, producing smoother slot surfaces and reducing vibration compared to single-tooth cutters.
• Micrograin Carbide Tips (HW Material Grade) - A dense, fine-grain carbide formulation resists edge chipping and wear, keeping the blade sharp through long production runs in hardwood, softwood, plywood, MDF, and laminates.
• CMT Orange PTFE Non-Stick Coating - The trademark anti-friction coating prevents pitch, resin, and adhesive buildup on the blade body, reducing heat generation and protecting against corrosion so the cutter lasts longer between cleanings.
• Anti-Kickback Design - Engineered geometry limits the maximum bite per tooth, reducing the risk of sudden kickback during handheld router or router table use - a critical safety benefit on a blade that cuts horizontally into workpiece edges.
• 1/2" Shank - A full 1/2" shank provides secure, low-runout seating in standard router collets, minimizing vibration and supporting precise slot placement.
• 0.051" Plate Thickness with 3/32" Kerf - The thin plate behind a slightly wider carbide kerf ensures clearance in the cut without removing excess material, resulting in tight-fitting spline and biscuit joints.
• 12.7mm Cutting Depth with 22mm Bearing Arbor - When paired with a CMT 824 series arbor fitted with a 22mm (7/8") bearing, the cutter achieves up to 12.7mm (1/2") cutting depth, making it suitable for deep groove joinery in thicker stock.
• Right-Hand Rotation - Standard RH rotation is compatible with virtually all handheld routers, router tables, and CNC routing machines without any special setup.

Why This Product

• Near-infinite slot cutter applications in a single blade - whether you are cutting spline grooves, routing biscuit slots, installing T-molding on cabinet edges, or building tongue and groove panels, this one cutter handles every task when paired with the appropriate CMT arbor.
• The anti-kickback geometry and micrograin carbide tips work together to make horizontal edge-slotting safer and more consistent, reducing the risk of bit failure or sudden grab, which is especially important when routing thin workpiece edges on a handheld router.
• The PTFE non-stick coating and dense carbide construction reduce downtime - less resin buildup means fewer cleaning stops, and a more wear-resistant edge means fewer blade change interruptions during production work in hardwood, MDF, melamine, or laminated panels.
• Sold as a blade only, this cutter gives experienced users the flexibility to combine it with any compatible CMT 824 series arbor and bearing configuration they already own, making it a cost-effective upgrade or replacement for an existing slot cutter setup.

Specifications

• Manufacturer Part Number: 822.324.11B
• Brand: CMT Orange Tools
• Diameter: 1-7/8"
• Cutting Depth: 12.7mm
• Teeth Thickness: 3/32"
• Plate Thickness: 0.051"
• Total Length: 2-21/32"
• Shank: 1/2"
• Number of Teeth: 3
• Blade Material: HW (Micrograin Carbide)
• Rotation: Right-Hand (RH)
• Product Type: Slot Cutter Blade

Approved Applications

• Slot and groove cutting for spline joints
• Biscuit slot routing (use with 4mm / 5/32" cutting length configuration for biscuit joints)
• T-molding and H-slot channel cutting
• Tongue and groove panel joinery
• Horizontal edge slotting in solid hardwood and softwood
• Groove routing in plywood, MDF, chipboard, melamine, laminates, and plastic panels