CMT 811.220.11 Straight Bit Short Series - 22mm Diameter, 1/4" Shank is a compact, two-flute routing bit engineered by CMT for high-efficiency material removal in woodworking and production environments. Designed for use with handheld routers, router tables, and CNC routing machines, this short-series straight bit delivers clean, precise cuts in solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic. Whether you need to cut dadoes, grooves, rabbets, or mortises - or perform template routing and plywood joinery - this bit is built to handle demanding workloads with consistent accuracy.

Key Features

• Micrograin Carbide (HW) Cutting Tips - hard, dense carbide grade retains a sharp cutting edge longer, reducing how often you need to stop and replace tooling during production runs.
• Fatigue-Proof Steel Body - the bit body is manufactured from special fatigue-proof steel, meaning it resists stress fractures and deformation even under heavy, repeated loading conditions.
• CMT Orange Shield Non-Stick P.T.F.E. Coating - the trademark orange P.T.F.E. surface treatment prevents resin, pitch, and other residue from collecting on the bit, keeping cutting surfaces cleaner and reducing friction-related heat buildup during extended use.
• Two-Flute (2-Tooth) Design - the double-edged geometry provides a balance of cutting speed and surface quality, making it well suited for both natural woods and composite sheet goods.
• Right-Hand Rotation - designed for standard right-hand router spindle direction, ensuring full compatibility with the vast majority of handheld and table-mounted routers as well as CNC platforms.
• Strict Quality Testing for Tolerance, Balance, and Concentricity - every bit is individually tested to guarantee cutting tolerance, balance, and concentricity, so you get repeatable, consistent results cut after cut rather than dealing with chatter or off-dimension grooves.
• 1/4" Shank - fits the widely used 1/4" collet size found on compact routers, trim routers, and many full-size routers, maximizing the range of machines this bit is compatible with.

Why This Product

• The short-series profile keeps the bit compact and rigid, reducing deflection during heavy cutting passes - this matters most when routing dadoes or grooves in thick plywood or hardwood where a longer bit would flex under lateral pressure.
• The combination of micrograin carbide tips and fatigue-proof steel body is specifically intended to withstand the heaviest production workloads, making this bit a practical choice for shops running high volumes of cuts rather than occasional hobby use.
• The P.T.F.E. non-stick coating directly addresses one of the most common maintenance problems with straight bits - resin and pitch buildup that causes burning and deteriorating cut quality - so you spend less time cleaning tooling and more time cutting.
• At a 22mm cutting diameter with a 3/4" cutting height, this bit is sized for versatile joinery and dado work across a wide range of materials including composites and natural wood species, giving you one tool that covers multiple common production tasks.

Specifications

• Manufacturer Part Number: 811.220.11
• Brand: CMT Orange Tools
• Diameter: 22mm
• Cutting Height: 3/4"
• Total Length: 2-1/4"
• Shank: 1/4"
• Number of Teeth: 2
• Material: HW (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
• Routing composites and natural wood species