CMT Matched Tongue and Groove Bit Set - 1/2 in. Shank

CMT Matched Tongue and Groove Router Bit Set, 1/2-in. Shank

Create strong, precise tongue and groove joints with the CMT Matched Tongue and Groove Router Bit Set.

The CMT Matched Tongue and Groove Router Bit Set makes it easy to create accurate tongue and groove joints without the hassle of disassembling and adjusting a single combination bit. This convenient two-bit set includes a dedicated grooving bit for cutting the slot and a separate tongue-cutting bit for producing perfectly matched joints.

Designed for woodworking projects using material up to 3/4 in. thick, these versatile router bits are ideal for cabinet doors, furniture, flooring, panel assemblies, and a wide range of custom woodworking applications. Each bit can also be used independently for additional routing tasks, giving you greater flexibility in the workshop.

The exclusive CMT design provides an effective solution for working with undersized plywood panels. The tongue cutter features opposing shear angles that deliver clean, smooth finishes across a variety of materials, including plywood, softwood, and hardwood. This design helps reduce tear-out while producing professional-quality results.

Features and Benefits

• Matched tongue and groove set: Includes separate bits for cutting grooves and tongues with precise alignment.
• Designed for up to 3/4 in. material: Ideal for common woodworking applications including panels, cabinetry, and furniture construction.
• Versatile performance: Use each bit individually for additional routing projects.
• Opposing shear angles: Tongue cutter design provides cleaner cuts and improved surface finish.
• Works with multiple materials: Suitable for plywood, hardwood, and softwood applications.
• CMT precision manufacturing: Built for accuracy, durability, and long-lasting cutting performance.

Safety Information

Safety Note: For use on a table-mounted router only. Do not use with handheld routers.

Safety Tips: Always wear a dust mask and eye protection when routing. Never use damaged or worn router bits. Always operate at the recommended feed rate and avoid forcing the bit through the material. When making initial cuts with small diameter bits, take multiple passes for safer operation and improved results.

How CMT Produces High-Quality Router Bits

• Turning, Milling and Cutting: CMT uses advanced automated CNC machinery operated by specially trained technicians to ensure router bit shanks and bodies are manufactured with exceptional accuracy and balance.
• Heat-Forged Steel Bodies: Large diameter bits receive additional heat-forging processes that create a strong radial grain structure, improving durability and strength during demanding woodworking applications.
• Precision Brazing: CMT’s computerized brazing process creates a secure bond between the steel body and carbide tips. The silver-copper-silver brazing system helps absorb shock and protects carbide edges during heavy cutting operations.
• Application-Specific Carbide: CMT develops specially formulated carbide grades designed for different woodworking needs, balancing hardness, durability, and impact resistance for specific cutting applications.
• Grinding and Sharpening: Each router bit undergoes precision grinding and sharpening to achieve sharp cutting edges, consistent performance, and a superior finished cut.