The CMT Solid Carbide Upcut Spiral Bit 1/4" is a precision-engineered single-flute router bit built from a special super-micrograin carbide formulation that holds a keen cutting edge through demanding routing tasks on solid wood, wood composites, plastic materials, and laminates. Designed with a low-angle upcut spiral geometry, this bit shears material cleanly while ejecting chips upward - keeping the cut zone clear, running cooler, and extending edge life well beyond what standard tooling delivers. Whether you are running a CNC routing machine, a router table, or a handheld router, this 1/4" shank bit delivers consistent, efficient material removal across a wide range of routing applications including cutting, copying, panel sizing, and deep pocket work.

Key Features

• Super-micrograin solid carbide construction - the entire bit is manufactured from a specially formulated super-micrograin carbide, providing superior wear resistance and the ability to hold a keen cutting edge longer, which means fewer tool changes and more consistent results over the life of the bit.
• Low-angle upcut spiral geometry - engineered specifically to shear wood cleanly rather than tear it, the upcut spiral pulls chips upward and out of the cut, keeping the flute clear, reducing heat buildup, and producing cleaner finished surfaces in solid wood and composites.
• Efficient chip ejection - the upcut design actively ejects chips away from the workpiece during routing, which helps tools run cooler, reduces friction, and extends the usable life of the cutting edges.
• Right-hand rotation - matched to standard router spindle direction, ensuring straightforward compatibility with CNC routing machines, router tables, and handheld routers without any special setup requirements.
• 1/4" shank diameter - fits standard 1/4" collets on a wide variety of routers, making this bit accessible for both professional CNC setups and workshop routing applications.
• 3/4" cutting height with 2" total length - provides adequate depth of cut for panel sizing, deep pockets, and through-cuts in common material thicknesses, while the overall 2" length keeps the bit rigid and stable during operation.
• Broad material compatibility - suited for routing solid wood, wood composites, plastic materials, and laminates, making this a versatile single tool for shops working across multiple material types.

Why This Product

• Engineered for cleaner cuts in wood and composites - the specially developed low-angle spiral geometry shears material rather than grinding through it, which is especially valuable when routing solid hardwood, plywood, MDF, or laminates where surface quality matters.
• Runs cooler for longer tool life - because the upcut spiral efficiently ejects chips and the super-micrograin carbide holds its edge, heat buildup is minimized during extended routing sessions, directly translating to more usable cuts before resharpening is needed.
• Single-flute design optimized for chip clearance - with one tooth, the flute geometry has maximum space for chip evacuation, making this bit particularly effective for deep pocket routing and applications where chip packing would otherwise slow the cut or damage the workpiece.
• Versatile across multiple routing platforms - the 1/4" shank and right-hand rotation make this bit immediately compatible with CNC routers, benchtop router tables, and handheld routers, reducing the need for multiple bits across different setups.

Specifications

• Manufacturer Part Number: 198.007.11
• Brand: CMT Orange Tools
• Product Type: Solid Carbide Upcut Spiral Bit
• Diameter: 1/4"
• Cutting Height: 3/4"
• Total Length: 2"
• Shank: 1/4"
• Number of Teeth: 1
• Material: HWM
• Rotation: Right-hand (RH)

Approved Applications

• Cutting and panel sizing
• Copying and pattern routing
• Deep pocket routing
• CNC routing on solid wood
• Routing wood composites
• Routing plastic materials
• Routing laminates