The CMT Adjustable Tongue and Groove Bit Set for Mission Style Cabinet Doors gives woodworkers a precise, versatile solution for crafting the clean, flat-panel joinery that defines Mission and Arts-and-Crafts style cabinetry. This two-piece router bit set - one adjustable Mission Style tongue bit and one adjustable Mission Style groove bit - is engineered for table-mounted router use and accepts material thicknesses ranging from 1/2 in. to 1 1/4 in., making it adaptable to a wide variety of door panel and frame stock. Built with tungsten carbide-tipped cutting edges and CMT's signature orange non-stick coating, this set is designed to deliver clean, consistent results across hardwoods, softwoods, sheet goods, and composite materials.

Key Features

• Adjustable tongue and groove bit pairing - both bits in the set are fully adjustable, allowing you to fine-tune the fit of your tongue and groove joint to match your exact stock thickness, eliminating the guesswork that comes with fixed-profile bits.
• Accepts material from 1/2 in. to 1 1/4 in. thickness - the wide adjustment range means this set works with thin panel stock as well as thicker door frames, giving you flexibility across multiple cabinet projects without switching tools.
• Hardwood carbide (HW) cutting material - industrial-grade carbide tips maintain a sharp cutting edge longer than standard high-speed steel, reducing the frequency of resharpening and keeping your profiles crisp over repeated use.
• CMT Orange Shield non-stick coating - the proprietary orange finish reduces pitch and resin buildup on the bit body, prevents corrosion between uses, and keeps the bit running cooler so you get cleaner cuts and longer tool life.
• SinterHIP Industrial Chrome Carbide - carbide processed through Hot Isostatic Pressing resists micro-fractures and material failure under cutting stress, extending the usable life of both bits in demanding hardwood applications.
• Tri-Metal Silver-Copper-Silver brazing - this three-layer brazing method creates a stronger bond between the carbide tip and the bit body, reducing the risk of tip separation when routing dense hardwoods or composite panel materials.
• 1/2 in. shank diameter - the full-size 1/2 in. shank provides maximum stability and reduced vibration during cuts, which translates directly to smoother joint surfaces and less tearout on your cabinet door components.
• Right-hand rotation - standard RH rotation is compatible with the vast majority of table-mounted routers, making setup straightforward and safe.
• Mission Style profile geometry - the bit profiles are specifically shaped to produce the square-shouldered, flat-panel look characteristic of Mission Style and Craftsman-style cabinet doors, so the joinery and the style work together seamlessly.

Why This Product

• Purpose-built for Mission Style joinery - rather than using a generic tongue and groove set that approximates the profile, this set is designed specifically for the flat-panel, square-shouldered aesthetics of Mission Style cabinet doors, giving you an authentic result without custom grinding or multiple-pass workarounds.
• One set covers a broad range of stock thickness - with adjustment capability from 1/2 in. to 1 1/4 in., a single purchase handles thin overlay door panels and thicker face-frame stock, making this a practical choice for shops that work with varied material dimensions.
• Table-mounted router compatibility keeps the setup stable - designed specifically for table-mounted use, the 1/2 in. shank and bit geometry work with the controlled feed rates of a router table, producing repeatable joints that fit consistently from piece to piece across an entire cabinet run.
• Carbide quality and protective coatings reduce downtime - the combination of SinterHIP carbide, Tri-Metal brazing, and the Orange Shield coating means fewer tip failures, less resin buildup to clean, and longer intervals between sharpenings, keeping your production moving efficiently.

Specifications

• Manufacturer Part Number: 800.625.11
• Brand: CMT Orange Tools
• Diameter: 1-5/8 in.
• Total Length: 3-11/32 in.
• Shank: 1/2 in.
• Maximum Thickness: 1/2 in. - 1 1/4 in.
• Number of Teeth: 2
• Blade Material: Hardwood Carbide-Tipped (HW)
• Rotation: Right-hand (RH)
• Product Type: Router Bit Set

What's Included

• Adjustable Mission Style Tongue Bit
• Adjustable Mission Style Groove Bit

Approved Applications

• Mission Style cabinet door frames and panels
• Craftsman-style face-frame cabinetry
• Tongue and groove joinery on solid hardwood
• Tongue and groove joinery on softwood
• Panel fitting in plywood cabinet door construction
• MDF and composite panel door assembly