CMT 192.007.41 Solid Carbide Downcut Spiral Router Bit by CMT is a precision-ground, 1/4 in. diameter spiral cutting tool engineered for applications where upper-face surface quality is the top priority. The downcut spiral geometry drives chips downward into the cut, preventing fiber tearout and splintering on the top face of the workpiece - making it the go-to choice for veneer routing, laminate trimming, melamine, and finish-critical CNC work. Built entirely from solid carbide and protected by CMT's DLCS coating, this bit is designed to deliver consistent, clean cuts across a wide range of sheet goods and solid materials.

Key Features

• Solid Carbide (HWM) Construction - the entire bit body is manufactured from premium micrograin carbide rather than a carbide-tipped steel body, resulting in superior wear resistance and greater durability across extended production runs.
• Downcut Spiral Geometry - the downward chip-ejection direction presses material fibers toward the workpiece surface rather than lifting them, eliminating tearout on the upper face and producing finish-ready edges on veneer, laminate, and melamine panels.
• DLCS Coating - Modified Diamond-Like Carbon with Chromium Nitride Base - a hard metal-based chromium nitride layer provides elevated surface hardness and increases the resilience of the superposed, tribologically effective carbon coating, offering impressive hardness on cutting areas and superb protection against abrasive wear and stress resistance.
• Coating Prevents Harmful Heat Buildup - the DLCS coating prevents the high heats that are detrimental to cutting tool performance and will remain fully effective after use, extending service life even during demanding production routing.
• 2-Flute Design - dual cutting edges balance chip load and feed rate capability, making this bit suitable for both handheld routers and CNC routing machines at production depths.
• 1/4 in. Shank - fits standard 1/4 in. collets on handheld routers, router tables, and CNC spindles, providing broad compatibility without adapters.
• Right-Hand Rotation (RH) - compatible with standard right-hand rotating router spindles and CNC machines, no special toolholder required.

Why This Product

• When upper-face surface quality cannot be compromised - such as with veneered plywood, laminate, or melamine - the downcut spiral direction keeps fibers pressed down during the cut, eliminating the tearout that upcut or straight bits commonly cause.
• The DLCS coating goes beyond basic surface protection: its enhanced load-bearing capacity and chromium nitride hardness layer mean the bit maintains cutting effectiveness even under the abrasive conditions created by composites, laminates, and MDF.
• Solid carbide construction (as opposed to carbide-tipped) means the full cutting geometry is carbide throughout, supporting multiple resharpening cycles while maintaining the same performance characteristics - a practical advantage in high-volume shop environments.
• With a 1/4 in. diameter and 3/4 in. cutting height in a compact 2 in. overall length, this bit is well suited for detail routing, narrow slots, and inlay work where a larger bit body would limit access or precision.

Specifications

• Manufacturer Part Number: 192.007.41
• Brand: CMT Orange Tools
• Product Type: Solid Carbide Downcut Spiral Router Bit
• Diameter: 1/4 in.
• Cutting Height: 3/4 in.
• Total Length: 2 in.
• Shank Diameter: 1/4 in.
• Number of Flutes: 2
• Rotation: Right-Hand (RH)
• Blade Material: Solid Carbide (HWM)
• Coating: DLCS (Modified Diamond-Like Carbon with Chromium Nitride Base Layer)
• Product Class: Router Cutter - Solid Carbide Spiral

Approved Applications

• CNC Routing
• Upper-Face Finish Routing
• Veneer Routing
• Laminate Trimming
• Melamine Cutting
• Plywood and MDF Routing
• Solid Hardwood and Softwood Routing
• Chipboard and Plastic Routing
• Narrow Slot and Inlay Routing
• Router Table Operations
• Handheld Router Operations