CMT Solid Carbide Downcut Spiral Bit with Chipbreaker - 1/2 in. is a professional-grade routing bit engineered from a special super-micrograin carbide formulation designed to produce and hold a keen cutting edge. Built for demanding CNC routing and handheld router applications, this right-hand 3-flute spiral bit combines a low-angle downcut spiral geometry with chipbreaker relief to deliver clean upper-face finishes and efficient chip ejection at high feed rates. It is well suited for cutting, copying, panel sizing, and a wide range of routing applications on solid wood, wood composites, plastic materials, and laminates.

Key Features

• Super-Micrograin Carbide Construction - the entire bit is manufactured from a specially formulated super-micrograin carbide that produces and holds a keen cutting edge longer than standard carbide grades, allowing more resharpenings and extended service life.
• Low-Angle Downcut Spiral Geometry - designed specifically to shear wood cleanly and push chips downward into the cut, resulting in a smooth, tear-free surface on the top face of the workpiece - ideal for finished panels, laminates, and melamine.
• Chipbreaker Flute Design - breaks chips into smaller pieces for more efficient chip ejection at high feed rates, keeping the flutes clear and allowing the tool to run cooler so cutting edges last longer.
• 3-Flute Configuration (3R) - three cutting edges distribute the cutting load evenly, improving surface finish quality and prolonging edge life compared to single- or double-flute designs in equivalent materials.
• 1/2 in. Shank with 1 1/2 in. Cutting Height - the full 1/2 in. shank provides a rigid, secure grip in the collet, minimizing vibration and deflection during deep routing passes up to 1 1/2 in. cutting height.
• Right-Hand Rotation - compatible with standard router collets and CNC spindles, making this bit a direct drop-in for most routing setups without any special toolholding requirements.

Why This Product

• For CNC operators running high feed rates, the chipbreaker geometry solves the common problem of chip clogging and heat buildup - keeping the bit cooler and the cut cleaner without slowing down production.
• The downcut spiral action prevents surface splintering and tear-out on the top face of the workpiece, making this bit a strong choice for finished panels, laminates, melamine, and other materials where surface quality is critical.
• The super-micrograin carbide formulation is engineered to hold a keen edge through extended routing sessions on solid hardwood, softwood, wood composites, and plastic materials - reducing the frequency of bit changes and resharpening cycles.
• With a 1/2 in. shank and 3 1/2 in. total length, this bit provides the rigidity and reach needed for both router table use and handheld router applications, covering a broad range of routing tasks from panel sizing to copying work.

Specifications

• Manufacturer Part Number: 196.506.11
• Brand: CMT Orange Tools
• Product Type: Solid Carbide Downcut Spiral Bit with Chipbreaker
• Diameter: 1/2 in.
• Cutting Height: 1 1/2 in.
• Total Length: 3 1/2 in.
• Shank: 1/2 in.
• Number of Teeth: 3R
• Blade Material: Solid Carbide (HWM Super-Micrograin)
• Rotation: Right-Hand (RH)

Approved Applications

• Cutting and panel sizing on solid hardwood and softwood
• Routing wood composites including plywood, MDF, and chipboard
• Routing plastic materials and laminates including melamine
• Copying and template-following operations
• High feed rate CNC routing with downcut finish requirements
• General routing on router tables and with handheld routers