CMT Solid Carbide Downcut Spiral Bit - 1/2" Diameter x 1-1/4" Cutting Height x 3" Overall Length is a precision-ground routing tool built for applications where surface quality on the top face is non-negotiable. Engineered from solid micrograin carbide and finished with CMT's advanced DLCS coating, this right-hand, downcut spiral router bit is purpose-built for CNC routing machines, router tables, and handheld routers working with veneers, laminates, melamine, hardwoods, softwoods, plywood, MDF, chipboard, and plastics. The downcut spiral geometry drives chips downward into the cut, suppressing tearout on the upper face and delivering clean, professional results on delicate or finished surfaces.

Key Features

• Solid Carbide Construction (HWM Material Grade) - manufactured entirely from high-quality micrograin carbide, giving this bit outstanding wear resistance and edge retention for longer tool life and more resharpenings compared to carbide-tipped designs.
• DLCS Modified Diamond-Like Carbon Coating - a hard, durable metal-based layer of chromium nitride underpins a tribologically effective carbon topcoat, delivering impressive hardness on cutting areas, superb protection against abrasive wear, and strong stress resistance so the coating remains fully effective even after repeated use.
• Heat Prevention Through Advanced Coating - the DLCS coating prevents the high heats that are detrimental to cutting tool performance, helping the bit stay cooler during demanding cuts and maintaining edge integrity over a longer working life.
• Downcut Spiral Geometry - presses chips downward rather than upward, preventing tearout on the upper surface and making this bit the right choice whenever the top-face finish quality is critical, such as in veneer, laminate, and melamine work.
• 2-Flute Design with 1/2" Shank - the twin-flute configuration balances chip evacuation with cutting efficiency, while the 1/2" shank provides a secure, rigid fit in standard collets for reduced vibration and improved cut quality.
• Right-Hand Rotation (RH) - compatible with all standard router spindles and CNC routing machines that use conventional right-hand tooling.
• 1-1/4" Cutting Height - provides ample depth capacity for full-thickness passes through common sheet goods and solid wood, reducing the need for multiple passes on standard material thicknesses.

Why This Product

• When working with veneered panels, laminates, or melamine where a clean top-face edge is essential, the downcut spiral geometry actively suppresses fiber tearout at the surface - eliminating the rework and material waste that upcut or straight bits can cause on delicate top surfaces.
• The DLCS coating's enhanced load-bearing capacity means the bit holds up under the friction and heat generated during high-duty CNC routing cycles, staying effective after repeated use rather than degrading quickly like uncoated carbide tools.
• Solid carbide construction throughout - not just carbide-tipped - provides consistent hardness and wear resistance from the cutting edge all the way through the body, supporting more resharpenings and a longer usable tool life.
• With a 1/2" shank and 3" overall length, this bit fits standard router table collets and CNC tool holders, making it a practical drop-in upgrade for shops already equipped with 1/2" tooling systems.

Specifications

• Manufacturer Part Number: 192.505.41
• Brand: CMT Orange Tools
• Product Type: Solid Carbide Downcut Spiral Bit
• Diameter: 1/2"
• Cutting Height: 1-1/4"
• Total Length: 3"
• Shank: 1/2"
• Number of Flutes: 2
• Rotation: Right-Hand (RH)
• Material: HWM Solid Carbide
• Coating: DLCS (Modified Diamond-Like Carbon with Chromium Nitride Base Layer)
• Macro Class: Router Cutter

Approved Applications

• CNC Routing
• Upper-Face Finish Routing
• Veneer and Laminate Routing
• Melamine Panel Routing
• Solid Hardwood Routing
• Softwood Routing
• Plywood and MDF Routing
• Chipboard Routing
• Plastic Routing
• Router Table Use
• Handheld Router Use