CMT Solid Carbide Straight Bit Long Series - 1/4 in. Cutting Diameter, 1/2 in. Shank is a precision-ground, three-flute routing bit engineered for industrial nesting applications and demanding production environments. Built from micrograin carbide using a special fatigue-proof steel construction, this long-series straight bit delivers deep, clean cuts through hardwoods, sheet goods, and composite panel materials with smooth, precise results on every pass. The extended 1 in. cutting height and 2-7/8 in. overall length make it particularly well-suited for CNC routing machines, router tables, and handheld routers wherever deeper straight cuts or precise panel joinery are required.

Key Features

• Solid Micrograin Carbide Construction - the micrograin carbide material holds a sharper edge longer than standard carbide, reducing tool changes and maintaining consistent cut quality even under heavy production workloads.
• Three-Flute (3-Tooth) Design - three cutting edges distribute the cutting load evenly, resulting in a smoother surface finish and cleaner edges on finished pieces compared to single- or two-flute alternatives.
• Long Series Geometry (1 in. Cutting Height / 2-7/8 in. Total Length) - the extended reach allows deeper passes in a single cut, making this bit ideal for nesting applications, dadoes, grooves, and through-cuts in panel materials without requiring multiple repositioning steps.
• 1/2 in. Shank Diameter - the larger shank provides a more secure grip in the collet, minimizes vibration during deep cuts, and improves overall stability and bit concentricity at high RPM.
• Right-Hand Rotation - compatible with the standard rotation direction of all common handheld routers, router tables, and CNC routing machines, requiring no special setup or reversed toolpaths.
• Double-Faced Razor-Sharp Cutters - the double-faced cutter geometry produces a beautiful, clean edge on finished pieces, reducing or eliminating the need for secondary sanding or cleanup operations.
• Special Fatigue Proof Steel Body - the body material resists stress fractures and deformation under heavy, continuous cutting loads, extending service life in high-volume industrial production settings.

Why This Product

• Designed specifically for industrial nesting applications, this long-series bit handles deep straight cuts through sheet goods and panel materials in a single pass - reducing cycle times and improving throughput on CNC routing machines and router tables.
• The combination of micrograin carbide and fatigue proof steel means this bit maintains its cutting edge through demanding production runs, so you spend less time stopping to inspect or swap tooling mid-job.
• With a 1/2 in. shank and 1 in. cutting height, the bit offers the rigidity and reach needed for accurate dadoes, grooves, and panel joinery cuts without the chatter or deflection that shorter or smaller-shank bits can introduce.
• The three-flute design produces finished edges clean enough to use directly, making this bit a strong choice for applications where edge quality on the final piece matters - such as cabinet nesting, furniture panels, and decorative laminate work.

Specifications

• Manufacturer Part Number: 812.564.11
• Brand: CMT Orange Tools
• Cutting Diameter: 1/4 in.
• Cutting Height: 1 in.
• Total Length: 2-7/8 in.
• Shank Diameter: 1/2 in.
• Number of Teeth: 3
• Blade Material: Solid Carbide (HWM - Micrograin Carbide)
• Rotation: Right-Hand (RH)
• Product Type: Solid Carbide Straight Bit, Long Series

Approved Applications

• Industrial Nesting Applications
• Deep Straight Cuts
• Dadoes and Grooves
• Template Routing
• Panel Joinery
• Solid Hardwood
• Softwood
• Plywood
• MDF
• Chipboard
• Laminates and Melamine
• Plastic