The CMT 811.127.11 Straight Bit Short Series is a precision-ground, 2-flute carbide router bit engineered for clean, accurate straight cuts in a wide range of materials. With a 1/2 in. cutting diameter, 3/4 in. cutting height, and a 1/4 in. shank, this compact short-series bit is built for handheld routers, router tables, and CNC routing machines alike. Constructed from micrograin carbide bonded to special fatigue-proof steel, it delivers the rigidity and edge retention needed for dadoes, grooves, rabbets, mortising, template routing, and plywood joinery - whether you are working with solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, or plastic. CMT's strict quality testing for cutting tolerance, balance, and concentricity ensures this bit performs consistently at industrial scale production levels while remaining accessible for shop use.

Key Features

• Micrograin Carbide Cutting Edges - harder and denser than standard carbide grades, micrograin carbide holds a sharper edge longer, reducing the frequency of bit changes during heavy production runs in plywood, composites, and natural woods.
• Fatigue-Proof Steel Body - the specially formulated steel body resists flexing and stress fractures under sustained heavy workloads, improving operator safety and bit longevity in demanding routing applications.
• CMT Orange Non-Stick P.T.F.E. Coating - this trademark surface treatment prevents resin, pitch, and other residue from adhering to the bit, which reduces heat buildup, maintains cleaner cuts, and extends the working life of the tool between cleanings.
• 2-Flute (Double Edged) Design - two cutting edges provide a balanced cutting action with smooth chip evacuation, resulting in cleaner finishes on dadoes, grooves, and mortises across a broad range of wood-based and composite materials.
• Short Series Profile - the compact 2 1/4 in. total length reduces vibration and deflection compared to longer bits, delivering tighter dimensional tolerances and more controlled routing in confined workpiece areas.
• Right-Hand Rotation - designed for standard right-hand router spindle direction, making it compatible with virtually all handheld routers, benchtop router tables, and CNC routing machines.
• Strict Quality Testing for Balance and Concentricity - every bit is individually tested to guarantee perfect cutting tolerance, balance, and concentricity, so you can expect repeatable, predictable performance cut after cut.

Why This Product

• The short-series body geometry minimizes bit deflection during deep straight cuts and mortising operations, making it a smart choice when dimensional accuracy is critical in cabinetry, joinery, or composite panel work.
• The combination of micrograin carbide and fatigue-proof steel is specifically engineered to handle the heaviest production workloads - meaning this bit maintains its edge longer when routing abrasive materials like plywood, MDF, laminates, and melamine.
• The orange P.T.F.E. non-stick coating directly reduces cleaning downtime: resin and pitch slide off rather than baking onto the carbide, keeping cutting edges exposed and effective for more cuts per session.
• With a 1/4 in. shank and 1/2 in. cutting diameter, this bit bridges the gap between compact collet availability and full-size material removal - giving routers with 1/4 in. collets access to a wider kerf without requiring an upgrade to larger tooling.

Specifications

• Manufacturer Part Number: 811.127.11
• Brand: CMT Orange Tools
• Diameter: 1/2 in.
• Cutting Height: 3/4 in.
• Total Length: 2 1/4 in.
• Shank: 1/4 in.
• Number of Teeth: 2
• Material: HW (Hardmetal / Micrograin Carbide)
• Rotation: Right-Hand (RH)
• Product Type: Straight Bit Short Series

Approved Applications

• Straight cuts including dadoes, grooves, and rabbets
• Mortising
• Template routing
• Plywood joinery
• Industrial scale production routing in natural woods, plywood, and composites