CMT Solid Carbide Downcut Spiral Router Bit - 5/16" Diameter, 1/2" Shank, 10-Piece Masterpack is a professional-grade routing solution engineered from a special super-micrograin carbide formulation that holds a keen cutting edge through demanding production runs. With a downcut spiral geometry, these bits press chips downward to eliminate tearout on the upper face of the workpiece - making them the go-to choice for veneer surfaces, laminates, melamine panels, and any solid wood or composite routing application where top-face finish quality cannot be compromised. Packaged in a convenient 10-piece masterpack, this set is built for high-volume shop environments and CNC routing operations.

Key Features

• Super-Micrograin Solid Carbide Construction - a special super-micrograin carbide formulation was created to produce and hold a keen cutting edge, delivering longer edge life and more consistent results between sharpenings compared to standard carbide grades.
• Low-Angle Downcut Spiral Geometry - the new low-angle spiral is designed specifically to shear wood cleanly and provide efficient chip ejection, so tools run cooler and edges last longer while the upper face remains tear-free.
• 2-Flute Design - dual cutting edges balance chip load and cutting efficiency, supporting smooth feed rates on CNC machines, router tables, and handheld routers alike.
• 5/16" Cutting Diameter x 1" Cutting Height - a compact cutting profile suited to detail routing, panel sizing, copying, and groove work in solid wood, wood composites, plastic materials, and laminates.
• 1/2" Shank - the larger shank diameter provides a secure grip in standard 1/2" router collets, reducing vibration and runout for cleaner cuts and safer operation.
• Right-Hand Rotation - compatible with the vast majority of routers and CNC spindles without any special setup or adapter requirements.
• 10-Piece Masterpack - stocking 10 bits at once keeps production lines running without downtime, and the per-unit cost advantage supports high-throughput shop economics.

Why This Product

• When routing veneered panels, laminated boards, or melamine surfaces, the downcut spiral geometry presses material fibers down rather than lifting them, preventing chipping and tearout on the show face - the critical quality factor for finished furniture and cabinetry.
• The super-micrograin carbide formulation is engineered specifically to hold a keen edge longer under continuous use, meaning fewer bit changes, less downtime, and lower per-part tooling cost in production environments.
• Efficient chip ejection from the low-angle spiral keeps heat out of the cut zone, protecting both the bit edge and the workpiece surface from heat-related damage during extended routing sessions.
• The 10-piece masterpack format provides immediate backup inventory for production shops, CNC routing facilities, and professional woodworking operations that cannot afford to halt work while waiting for replacement tooling.

Specifications

• Manufacturer Part Number: 192.501.11-X10
• Brand: CMT Orange Tools
• Product Type: Solid Carbide Downcut Spiral Router Bit
• Diameter: 5/16"
• Cutting Height: 1"
• Total Length: 3"
• Shank: 1/2"
• Number of Flutes: 2
• Rotation: Right-Hand (RH)
• Material: Solid Micrograin Carbide (HWM)
• Pack Quantity: 10

Approved Applications

• Cutting and panel sizing on solid wood and wood composites
• Copying and template routing
• Routing on plastic materials and laminates
• Upper-face finish routing where tearout prevention is critical
• CNC routing production runs
• Router table and handheld router operations