CMT Solid Carbide Straight Bit - Long Series, 5/16" Diameter with 1/4" Shank is a precision routing tool engineered for deep, clean cuts in a wide range of materials. Built from micrograin solid carbide and featuring CMT's signature orange non-stick PTFE coating, this long-series straight router bit delivers smooth, precise results whether you are cutting dadoes, grooves, or panel joints. The extended 1 1/4" cutting height makes it the right choice when a standard-length straight bit simply cannot reach deep enough, giving woodworkers and CNC operators the reach they need without sacrificing cut quality.

Key Features

• Solid Micrograin Carbide Construction - the high-density carbide material withstands heavy workloads and repeated use while maintaining a sharp, precise cutting edge for consistently smooth results.
• Long Series Design with 1 1/4" Cutting Height - the extended cutting height allows for deeper passes in solid hardwood, plywood, MDF, and laminates, making this bit suitable for dadoes, grooves, and deep template routing that shorter bits cannot accomplish.
• Razor-Sharp Double-Faced Cutters on Special Fatigue Proof Steel - the cutter geometry is designed to handle even the heaviest cutting loads while producing a beautiful, clean edge on your finished piece.
• Exceptional Chip Ejection - efficient removal of material during cutting keeps the flutes clear, resulting in cleaner and more constant cutting with reduced heat buildup at the bit tip.
• CMT Orange Non-Stick PTFE Surface Coating - the trademark orange coating helps keep the bit free from resin, pitch, and other residue, reducing friction, protecting against corrosion, and extending the working life of the bit.
• 2-Flute Right-Hand Rotation - two cutting edges balanced for right-hand rotation work in harmony to produce smooth cuts and minimize chatter during handheld router and router table operations.
• 1/4" Shank Diameter - the 1/4" shank is compatible with a wide range of handheld routers and router tables, providing a secure, stable fit for precise cutting control.

Why This Product

• When a standard straight bit cannot reach the required depth, the 1 1/4" cutting height of this long-series bit gives you the extra reach needed for deep dadoes, grooves, and panel joinery cuts in materials such as solid hardwood, plywood, MDF, and melamine.
• The solid micrograin carbide construction paired with fatigue proof steel cutters means this bit is built to handle heavy, repeated cutting sessions and still deliver the fine edge quality that finish work demands.
• The CMT orange PTFE non-stick coating actively resists resin and pitch buildup during routing, which means less cleaning time between cuts, reduced friction-related heat, and a longer service life compared to uncoated bits.
• With exceptional chip ejection built into the cutter geometry, material clears the flutes efficiently during deep cuts, keeping the routing path clean and reducing the risk of burning or tear-out on the finished surface.

Specifications

• Manufacturer Part Number: 812.080.11
• Brand: CMT Orange Tools
• Diameter: 5/16"
• Cutting Height: 1 1/4"
• Total Length: 2 3/8"
• Shank: 1/4"
• Number of Teeth: 2
• Material: Solid Carbide (HWM)
• Rotation: Right-Hand (RH)
• Product Type: Solid Carbide Straight Bit, Long Series

Approved Applications

• Deep straight cuts in solid hardwood and softwood
• Dadoes and grooves in plywood, MDF, and chipboard
• Template routing requiring extended bit reach
• Panel joinery and edge work in laminates and melamine
• Plastic routing applications requiring a clean, precise cut