CMT Straight Bit Long Series - 3/8 in. Dia. - 1/4 in. Shank

CMT Straight Bit Long Series - 1/4 in. Shank

The CMT Straight Bit Long Series is designed for efficient stock removal, accurate routing, and clean, consistent results across a wide range of woodworking applications. Featuring a 1/4 in. diameter cutter and 1/4 in. shank, this straight router bit is an excellent choice for routing grooves, dados, mortises, recesses, and other straight-sided cuts in wood and composite materials.

CMT straight bits combine razor-sharp, double-faced carbide cutters with precision-manufactured bodies to deliver smooth, reliable cutting performance. Constructed from special Fatigue Proof® steel and micrograin carbide, the bit is engineered to withstand demanding production environments while maintaining cutting accuracy and edge quality. The long-series design provides extended cutting reach for applications requiring greater cutter height.

Optimized chip ejection helps remove material efficiently, supporting cleaner and more consistent cuts while reducing the buildup of chips around the cutting area. The bit is also finished with CMT’s trademark orange non-stick PTFE coating, which helps resist the accumulation of resin, pitch, and other residues. Every CMT router bit undergoes strict quality testing to ensure proper cutting tolerance, balance, and concentricity.

Suitable for a variety of plywood, composite materials, and natural woods, this CMT straight bit is built to support both professional woodworking and production-scale routing applications.

Product Features

• 1/4 in. Cutter Diameter: Provides precise straight cuts for a variety of routing applications.
• Long-Series Design: Offers extended cutting reach for deeper or longer routing operations.
• 1/4 in. Shank: Compatible with routers equipped to accept a 1/4 in. shank.
• Micrograin Carbide Cutters: Designed to provide sharp, durable cutting performance and a smooth finish.
• Fatigue Proof® Steel Body: Provides strength and durability for demanding woodworking applications.
• Efficient Chip Ejection: Helps clear chips from the cutting area for smoother, more consistent routing.
• Orange PTFE Non-Stick Coating: Helps reduce the accumulation of resin, pitch, and other residues on the bit.
• Precision Manufacturing: Carefully produced and tested for cutting tolerance, balance, and concentricity.
• Versatile Material Compatibility: Suitable for plywood, composites, and natural woods.

Applications

Use the CMT Straight Bit Long Series for general-purpose routing and material removal, including cutting grooves and dados, creating recesses and mortises, and producing straight-sided profiles. Its extended cutting length makes it particularly useful when additional routing depth or reach is required.

How CMT Produces High-Quality Router Bits

• Precision Turning, Milling, and Cutting: CMT uses highly automated CNC manufacturing equipment operated by specially trained personnel to produce accurately dimensioned and balanced router bit bodies and shanks.
• Heat-Forged Steel Bodies: Larger diameter bits may receive an additional heat-forging process before precision machining. This creates a radial grain orientation that contributes to increased strength and durability.
• Advanced Brazing: CMT’s computerized brazing equipment helps maintain consistent bonding between the steel body and carbide. A silver-copper-silver brazing construction provides a strong connection with shock-absorbing properties to help protect carbide during demanding cuts.
• Application-Specific Carbide: CMT formulates carbide grades for different woodworking requirements, balancing hardness, toughness, wear resistance, and cutting performance according to the intended application.

Safety Tips

Dust and chips produced when routing laminate and other composite materials may be hazardous to your health. Always wear appropriate eye protection and a properly rated dust mask or respirator when routing.

Safety Precautions

• Never use a router bit that is damaged, cracked, bent, or excessively worn.
• Make sure the bit is securely installed and properly tightened in the router collet before use.
• Operate the router at the manufacturer’s recommended speed and use the appropriate feed rate for the material and bit diameter.
• Do not force the bit through the workpiece. Allow the cutter to remove material at a controlled rate.
• Take particular care when making an initial cut with a small-diameter router bit.
• For demanding cuts with small-diameter bits, use multiple passes rather than attempting to remove excessive material in a single pass.
• Always follow the router manufacturer’s operating instructions and use appropriate personal protective equipment.

With precision manufacturing, durable materials, efficient chip removal, and CMT’s non-stick PTFE finish, the CMT Straight Bit Long Series is a dependable choice for clean, accurate routing in professional and production woodworking applications.