The CMT 811.564.11 Solid Carbide Straight Bit Short Series is a precision-ground, two-flute routing bit engineered for clean, accurate straight cuts in demanding woodworking and production environments. Built from micrograin solid carbide and housed on a 1/2 in. shank, this short-series bit delivers exceptional rigidity and reduced vibration - making it a reliable choice for dadoes, grooves, mortises, and template routing work on plywood, composites, and natural woods. The compact 2 1/2 in. total length minimizes deflection during aggressive passes, while the 1/4 in. cutting diameter and 3/4 in. cutting height give woodworkers precise control over depth and channel width.

Key Features

• Solid Micrograin Carbide Construction - the bit is machined from high-grade micrograin carbide to withstand heavy workloads, maintaining a sharp cutting edge longer than standard steel bits and reducing the need for frequent replacements in production settings.
• Fatigue-Proof Steel Body - the body is made of special fatigue-proof steel, so the bit holds up under repeated, high-stress routing passes without flexing or fracturing, ensuring consistent performance over time.
• CMT Orange Non-Stick P.T.F.E. Coating - the trademark orange P.T.F.E. surface coating prevents resin, pitch, and other residue from bonding to the bit, reducing heat buildup and keeping cutting edges cleaner for longer between maintenance intervals.
• 2-Flute Double-Edged Design - two cutting edges work together to produce smoother chip evacuation and cleaner cut surfaces in hardwood, softwood, plywood, and composite sheet goods.
• Short Series Profile - the reduced overall length increases rigidity and minimizes bit deflection, which translates to tighter tolerances and straighter walls in dadoes, grooves, and routed channels.
• Strict Quality Testing for Balance and Concentricity - every bit undergoes rigorous quality control checks for cutting tolerance, balance, and concentricity, so the bit runs true in handheld routers, router tables, and CNC routing machines alike.
• Right-Hand Rotation - standard RH rotation is compatible with conventional router spindles, requiring no adapter or special setup for immediate use.

Why This Product

• The short-series form factor makes this bit an ideal choice for routing operations where deflection is a concern - particularly when cutting clean dadoes and grooves in plywood joinery or working with composites that demand precise, repeatable results.
• The combination of micrograin carbide and fatigue-proof steel construction means this bit is built to hold up under industrial-scale production volumes, not just occasional hobby use - a meaningful advantage for shops running continuous routing cycles.
• The orange P.T.F.E. non-stick coating addresses one of the most common maintenance problems in routing: resin and pitch accumulation that degrades cut quality and shortens bit life - this coating helps keep the bit cutting cleanly between cleanings.
• With a 1/2 in. shank on a 1/4 in. diameter cutting head, this bit is compatible with a wide range of router platforms and delivers a stable, low-vibration connection that supports accuracy whether used in a fixed router table or a handheld configuration.

Specifications

• Manufacturer Part Number: 811.564.11
• Brand: CMT Orange Tools
• Cutting Diameter: 1/4 in.
• Cutting Height: 3/4 in.
• Total Length: 2 1/2 in.
• Shank Diameter: 1/2 in.
• Number of Teeth: 2
• Blade Material: Solid Carbide (HWM - Micrograin)
• Rotation: Right-Hand (RH)
• Series: Short Series
• Product Type: Solid Carbide Straight Bit

Approved Applications

• Straight cuts - dadoes, grooves, and rabbets
• Mortising
• Template routing
• Plywood joinery
• Routing solid hardwood and softwood
• Routing plywood, composites, and engineered sheet goods