CMT Flush Trim Bit - 3/8 in. Dia. x 1/2 in. H. 1/4 Shk

CMT Flush Trim Bit – 3/8 in. Dia. – 1/4 in. Shank

Tough, versatile, and fast-cutting, CMT Flush Trim Bits are designed for a wide range of trimming applications. Available in multiple sizes, these carbide-tipped bits deliver precision performance for laminate work, template routing, and other woodworking projects requiring a clean, accurate finish.

These indispensable router bits are engineered to provide smooth cutting action and reliable results. Whether you are trimming laminates or creating precise template cuts, CMT Flush Trim Bits offer the performance and durability needed for professional-quality woodworking.

Shop Tips

CMT Flush Trim Bits are excellent for creating through mortises. Start by using a straight bit to cut the groove for the mortise. Drill a hole through the workpiece at one end of the groove, then turn the piece over to complete the mortise from the opposite side.

For the best results, use a flush trim bit with a cutting length slightly longer than the fillet. Follow the groove created on the opposite side of the workpiece while allowing the ball-bearing guide to maintain a consistent path for accurate cutting.

Safety Precautions

Never use damaged or worn router bits. Always operate at the recommended feed rate and avoid forcing the bit through the material. Take extra care when making initial cuts with small-diameter bits. For improved control and finish quality, make multiple passes when working with smaller bits.

How CMT Produces High-Quality Router Bits

• Turning, Milling, and Cutting
  CMT continually invests in advanced manufacturing technology. Fully automated CNC machinery, operated by specially trained technicians, ensures that router bit shanks and bodies are precisely machined, accurately balanced, and built for consistent performance.
• Heat-Forged Steel Bodies for Large-Diameter Bits
  Larger router bits require additional manufacturing steps, including heat forging the steel before precision machining. This process creates a radial grain structure that improves strength, durability, and resistance to demanding cutting conditions.
• Advanced Brazing Technology
  CMT’s custom-designed computerized brazing equipment provides a consistent bond between the steel body and carbide tips. The silver-copper-silver brazing process creates a strong connection while adding shock absorption to help protect carbide edges during tough cutting applications.
• Specially Formulated Carbide for Specific Applications
  Different woodworking materials require different cutting characteristics. CMT develops carbide formulations tailored to each application, ranging from ultra-hard carbide for demanding laminate cutting to more impact-resistant grades for large-profile bits.
• Grinding and Sharpening
  The final production stage ensures each cutting edge meets CMT’s strict standards for sharpness, accuracy, and long-lasting performance. Precision grinding and sharpening help deliver clean cuts and dependable results throughout the life of the bit.