CMT 3-Piece Plywood Straight Bit Set - for 1/4, 1/2, & 3/4 in. Plywood - 1/2 in. Shank

CMT 3-Piece Plywood Groove Set – 1/2 in. Shank

The CMT 3-Piece Plywood Groove Set is specially designed for routing precise grooves and dadoes in plywood. Each bit is sized to match the actual thickness of common plywood materials, helping create tight-fitting, accurate joints without unwanted gaps or excessive play.

Unlike standard router bits that may be sized for nominal dimensions, these plywood groove bits are engineered around the true thickness of plywood. This makes them an excellent choice for cabinetmaking, furniture construction, shelving, drawers, and other woodworking projects where accurate plywood joinery is essential.

Three Sizes for Common Plywood Thicknesses

• 23/32 in. Bit – Designed for 3/4 in. plywood
• 31/64 in. Bit – Designed for 1/2 in. plywood
• 15/64 in. Bit – Designed for 1/4 in. plywood

With the correct bit for the material, you can produce grooves and dadoes that closely match the actual plywood thickness for cleaner, more accurate assembly.

No gaps. No sloppy joints. No worries.

Ideal for Precision Plywood Joinery

The CMT plywood groove set is a practical choice for woodworkers who need consistent dadoes and grooves when working with plywood. The accurately sized cutters help simplify joinery by reducing the need to compensate for variations between nominal plywood dimensions and actual material thickness.

• Rout accurate grooves and dadoes in plywood
• Sizes matched to common plywood thicknesses
• Helps produce tight-fitting joints
• Ideal for cabinetry, shelving, furniture, and general woodworking
• 1/2 in. shank provides compatibility with routers equipped for 1/2 in. shank bits

How CMT Produces High-Quality Router Bits

• Turning, Milling and Cutting
  CMT has made significant investments in modernized production equipment. Automated CNC machinery operated by specially trained technicians helps ensure router-bit shanks and bodies are manufactured with high accuracy and balance.
• Heat-Forged Steel Bodies for Large-Diameter Bits
  Certain CMT bits require additional manufacturing processes, including heat forging the steel used for larger-diameter bit bodies. This process creates a radial grain orientation that contributes additional strength and durability.
• Precision Brazing
  CMT uses specially designed computerized brazing equipment to provide consistent bonding between the steel body and carbide. Its silver-copper-silver brazing construction creates a strong joint while helping absorb shock and protect carbide tips during demanding cutting applications.
• Specially Formulated Carbide
  CMT formulates carbide grades for specific cutting applications. Different carbide compositions can be selected to balance hardness, durability, and impact resistance according to the type of material and cutting profile.
• Grinding and Sharpening
  CMT uses multi-axis CNC equipment for precision grinding and sharpening. Cutting edges, bevels, and angles are manufactured to exact specifications to help provide consistent cutting performance, long tool life, and a clean finished surface.

Safety Tips

Always wear appropriate personal protective equipment when operating a router. Wear eye protection and a dust mask to help protect against flying debris and airborne wood dust.

Safety Precautions

• Never use router bits that are damaged, cracked, worn, or otherwise compromised.
• Operate the router at the manufacturer's recommended speed and feed rate.
• Do not force the bit through the workpiece.
• Use particular care when making the initial cut with smaller-diameter bits.
• For best results with small-diameter bits, make deeper cuts in multiple passes rather than attempting to remove all material in a single pass.
• Secure the workpiece properly before routing and maintain a firm, controlled grip on the router.

The CMT 3-Piece Plywood Groove Set provides three precision sizes for common plywood applications, making it easier to create accurate grooves and dadoes for tight, dependable woodworking joints. With carefully manufactured bodies, precision-ground cutting edges, and application-specific carbide, this set is built to deliver reliable performance for both professional and serious woodworking applications.