Product Description
The CMT 811.191.11B Pattern Bit with Bearing is a precision-ground, 2-flute straight router bit engineered for accurate template routing, pattern duplication, and guided straight cuts in a wide range of materials. Built by CMT with a 1/4 in. shank and a 3/4 in. cutting diameter, this short-series bit is equally at home in a handheld router, router table, or CNC routing machine. Its integrated bearing guide follows templates and patterns with consistency, making it a reliable choice for woodworkers and production shops that demand repeatable results across solid hardwood, plywood, MDF, composites, laminates, and more.
Key Features
- Fatigue-Proof Steel Body - the body is manufactured from special fatigue-proof steel, giving the bit the structural durability to handle heavy, repeated workloads without compromising accuracy or balance.
- Micrograin Carbide Cutting Edges - micrograin carbide provides a finer, harder cutting edge than standard carbide, resulting in cleaner cuts, longer edge retention, and extended service life even through dense or abrasive materials.
- Orange Non-Stick P.T.F.E. Coating - CMT's trademark orange P.T.F.E. surface coating repels resin, pitch, and other residue buildup, reducing friction and heat at the cutting edge to help maintain performance over time.
- Integrated Bearing Guide - the top-mounted bearing follows template edges precisely, enabling accurate pattern routing and duplication without the need for fences or additional guides.
- 2-Flute (Double-Edge) Design - two cutting edges work together to produce balanced cuts with smooth surface finishes, and the symmetrical load reduces vibration during operation.
- Right-Hand Rotation - engineered for standard right-hand router operation, ensuring compatibility with the vast majority of handheld routers, router tables, and CNC routing machines.
- Strict Quality Testing - every bit undergoes rigorous quality checks for cutting tolerance, balance, and concentricity, so you get consistent, true results straight out of the box.
Why This Product
- The bearing guide and precise 3/4 in. cutting diameter make this bit ideal for template routing and pattern duplication - a practical solution for any application requiring consistent, repeatable profiles across multiple workpieces.
- The combination of fatigue-proof steel and micrograin carbide means this bit can sustain heavy production volumes across plywood, composites, natural woods, and engineered panels without rapid wear or edge failure.
- The P.T.F.E. non-stick coating actively reduces pitch and resin accumulation, which translates to fewer cleanings, less downtime, and more consistent cut quality over the life of the bit.
- At 2-1/4 in. total length with a 3/4 in. cutting height, this short-series pattern bit is well-suited to mortising and dadoing tasks where a compact tool profile improves control and reduces deflection.
Specifications
- Manufacturer Part Number: 811.191.11B
- Brand: CMT Orange Tools
- Diameter: 3/4 in.
- Cutting Height: 3/4 in.
- Total Length: 2-1/4 in.
- Shank: 1/4 in.
- Number of Teeth: 2
- Material: HW (Micrograin Carbide)
- Rotation: Right-Hand (RH)
- Product Type: Pattern Bit with Bearing, Short Series
Approved Applications
- Template Routing and Pattern Duplication
- Straight Cuts - Dadoes, Grooves, and Rabbets
- Mortising
- Plywood Joinery
- Production Work in Natural Woods, Plywood, Composites, Laminates, and Melamine
Frequently Asked Questions
What is the purpose of the bearing on this pattern bit?
The integrated bearing guide rides along the edge of a template or pattern, allowing the bit to follow that edge precisely and reproduce the same profile on each workpiece. This eliminates the need for a fence setup and ensures consistent results across repeated cuts.
What materials can this bit cut?
This pattern bit is suitable for use in a variety of materials including solid hardwood, softwood, plywood, MDF, chipboard, composites, laminates, melamine, and plastic. The micrograin carbide cutting edges maintain sharpness across both natural woods and engineered panel products.
What machines are compatible with this 1/4 in. shank bit?
The 1/4 in. shank is compatible with handheld routers, router tables, and CNC routing machines that accept a 1/4 in. collet. Always confirm your machine's collet size before installing any router bit.
Why does this bit have an orange coating, and does it affect cutting performance?
The orange coating is CMT's trademark non-stick P.T.F.E. finish. It prevents resin, pitch, and other residue from bonding to the bit's surface during cutting, which helps reduce heat buildup and makes cleanup easier - contributing to longer bit life and more consistent cut quality over time.
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