CMT Solid Carbide Straight Bit Short Series - 3/16" Cutting Diameter, 1/4" Shank is a precision-ground routing bit built for demanding production environments where accuracy, durability, and clean cuts are non-negotiable. Engineered from micrograin solid carbide and coated with CMT's signature orange non-stick P.T.F.E. coating, this short-series straight bit delivers consistent performance when routing dadoes, grooves, mortises, and plywood joinery in natural woods, composites, and engineered sheet goods. Its compact 2" overall length and 3/16" cutting diameter make it especially well-suited for detail work and tight-clearance routing passes where a full-length bit would be impractical.

Key Features

• Micrograin Solid Carbide Construction - the entire bit body is formed from micrograin carbide, not just the cutting tip, giving it the density and fatigue resistance needed to handle heavy, repeated workloads without chipping or deflecting mid-cut.
• Orange Non-Stick P.T.F.E. Coating - CMT's trademark surface treatment resists resin, pitch, and residue buildup, keeping the cutting edges cleaner longer and reducing friction-related heat that can scorch workpieces or degrade edge quality.
• Special Fatigue-Proof Steel Body - the shank and body are made from fatigue-proof steel specifically selected to absorb the stresses of continuous high-speed routing, reducing the risk of shank failure during extended production runs.
• 2-Flute (Double-Edged) Geometry - two cutting edges provide a balanced cut with smooth chip evacuation, resulting in cleaner groove walls and reduced vibration compared to single-flute designs.
• Short Series Profile - the reduced overall length of 2" improves rigidity and minimizes deflection, which translates directly into tighter cutting tolerances and straighter grooves, especially in harder materials.
• Right-Hand Rotation - designed for standard right-hand (RH) rotation routers, making it compatible with the vast majority of handheld routers, router tables, and CNC routing machines in production and workshop settings.
• Strict Quality Testing for Tolerance, Balance, and Concentricity - every bit is individually tested before leaving the factory, so you can rely on consistent dimensional accuracy and smooth running balance across the life of the tool.

Why This Product

• Built for production-scale work in wood and composites - the micrograin solid carbide construction and fatigue-proof steel shank are specifically chosen to withstand the demands of industrial-scale routing in plywood, composites, and natural woods, making this bit a dependable choice when downtime from tool failure is not acceptable.
• Short series design reduces deflection where it matters most - when routing narrow grooves or mortises at 3/16" diameter, bit flex is a real concern. The short-series geometry keeps the cutting geometry stiff, preserving groove straightness and dimensional accuracy across repeated passes.
• P.T.F.E. coating extends intervals between cleaning and sharpening - by actively repelling resin and pitch, the orange coating helps maintain cutting sharpness and edge performance longer than uncoated carbide bits, reducing maintenance frequency during continuous use.
• Fits standard 1/4" collets without adapters - the 1/4" shank is the most common collet size found on compact routers, full-size routers, and light CNC spindles, so this bit slots directly into your existing setup without additional hardware.

Specifications

• Manufacturer Part Number: 811.047.11
• Brand: CMT Orange Tools
• Cutting Diameter: 3/16"
• Cutting Height: 1/2"
• Total Length: 2"
• Shank: 1/4"
• Number of Cutting Edges: 2
• Blade Material: Solid Carbide (HWM Micrograin)
• Rotation: Right-Hand (RH)
• Series: Short Series Straight Bit

Approved Applications

• Straight cuts including dadoes, grooves, and rabbets
• Mortising
• Template routing
• Plywood joinery
• Routing in solid hardwood and softwood
• Routing in plywood, composites, and engineered panels