CMT Super-Duty Shearing Flush Trim Bit, 3/4 in. Dia. x 1 in. Cutter, 1/2 in. Shank

CMT Super-Duty Flush Trim Bit – 3/4 in. Dia. – 1/2 in. Shank

The CMT Super-Duty Flush Trim Bit is engineered for demanding routing applications where clean edges, smooth finishes, and reliable performance are essential. Featuring a 3/4 in. cutting diameter, 1/2 in. shank, negative shear angle cutting geometry, and ball-bearing guides, this professional-grade router bit delivers fast, precise trimming with minimal chipping.

Designed with a two-flute cutting configuration and double-bearing guide system, this flush trim bit provides excellent control and stability during routing. The down-shear design helps produce cleaner, smoother cuts across a variety of woodworking materials while reducing splintering and tear-out.

Professional Flush Trimming Performance

• 3/4 in. Cutting Diameter: Provides an efficient cutting profile for flush trimming and template-routing applications.
• 1/2 in. Shank: Provides a secure, rigid connection in compatible router collets, making it well suited for demanding shop use.
• Negative Shear Angle: Helps improve cut quality while minimizing chipping and producing a smoother finished edge.
• Two-Flute Design: Promotes efficient material removal and consistent cutting performance.
• Double Ball-Bearing Guides: Provide smooth, controlled tracking along templates, patterns, and workpiece edges.
• Down-Shear Geometry: Helps create cleaner cuts and improved surface quality.
• Curved-Workpiece Capability: Particularly effective for routing curved elements along or against the grain.

Versatile Routing Applications

The innovative design eliminates the need to flip or reposition the tool during many routing operations. The bearing-guided cutting action makes this bit especially useful for trimming laminated edges, following templates, duplicating patterns, and routing curved components. Its super-duty construction makes it a dependable choice for professional woodworking shops and demanding production environments.

Shop Tip: Through Mortises

This flush trim bit can also be useful when producing through mortises. Start by using a straight bit to groove the desired mortise area. Drill a hole through the workpiece at one end of the groove, then turn the workpiece over to complete the mortise. Select a flush trim bit with a cutting length slightly longer than the fillet and use the ball-bearing guide to follow the groove created on the opposite side of the workpiece.

CMT Router Bit Manufacturing Quality

• Precision CNC Manufacturing: CMT uses automated CNC machinery operated by specially trained personnel to produce accurate, consistently balanced router bit bodies and shanks.
• Heat-Forged Steel Bodies: Large-diameter bits may use heat-forged steel bodies to provide a radial grain orientation that increases strength and durability.
• Precision Brazing: CMT's computerized brazing process helps create a consistent bond between the steel body and carbide. A silver-copper-silver brazing construction provides a strong, shock-absorbing connection designed to protect carbide during demanding cuts.
• Application-Specific Carbide: CMT formulates carbide grades for specific woodworking applications, helping optimize cutting performance, edge life, and durability for different materials.

Safety Tips

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

Safety Precautions

• Never use router bits that are damaged, cracked, or excessively worn.
• Operate the router at the manufacturer's recommended speed and feed rate.
• Do not force the bit through the material; allow the cutting edges to remove material efficiently.
• Take particular care when making the initial cut, especially when working with smaller-diameter router bits.
• For demanding operations or when using smaller-diameter bits, make multiple passes rather than attempting to remove excessive material in a single pass.
• Always ensure the bit is properly secured in the router collet before operation.

With its super-duty construction, negative shear cutting edge, double ball-bearing guides, and down-shear design, the CMT Super-Duty Flush Trim Bit is built to provide smooth, accurate, and dependable flush trimming for professional woodworking and routing applications.