Product Description
The CMT 811.032.11 Solid Carbide Straight Bit Short Series is a precision-ground, double-edged routing bit built for demanding production environments and fine woodworking alike. With a 1/8 in. cutting diameter and a compact short-series profile, this bit delivers exceptional control for narrow dadoes, tight mortises, and detail routing in plywood, composites, and natural wood. Crafted from micrograin carbide and protected by CMT's trademark orange non-stick coating, it is engineered to maintain clean, accurate cuts through even the heaviest continuous workloads on handheld routers, router tables, and CNC routing machines.
Key Features
- Solid Micrograin Carbide Construction - the entire bit body is formed from high-density micrograin carbide rather than a steel body with a brazed tip, giving it superior hardness and resistance to deflection during high-feed routing passes.
- Fatigue-Proof Steel Core - the shank and core material is engineered to withstand repeated heavy workloads without stress fractures, translating to a longer service life and fewer bit replacements in production settings.
- Orange Non-Stick P.T.F.E. Coating - CMT's proprietary surface treatment repels resin, pitch, and other residue from sticking to the flutes, reducing heat buildup and keeping the bit running cleaner for longer between cleanings.
- 2-Flute Double-Edged Design - two cutting edges work together to balance the cutting load and produce smoother groove walls in a single pass, improving surface finish in plywood joinery, dadoes, and template routing applications.
- Short-Series Profile with 1/4 in. Shank - the reduced overall length of 1 3/4 in. minimizes tool stick-out and maximizes rigidity, reducing vibration and improving dimensional accuracy in precise or repetitive CNC routing tasks.
- Right-Hand Rotation - designed for standard right-hand router spindle rotation, ensuring compatibility with conventional handheld routers, router tables, and CNC spindles without any adapter or modification.
- Strict Quality Testing for Tolerance, Balance, and Concentricity - every bit undergoes quality checks for cutting tolerance, rotational balance, and concentricity, meaning the bit runs true at speed and produces consistent cut geometry piece after piece.
Why This Product
- The short-series design with a 3/8 in. cutting height keeps the bit rigid and stable during narrow groove routing, making it a reliable choice for CNC programs and template work where dimensional repeatability matters most.
- The solid micrograin carbide body - rather than a brazed insert - means there is no carbide-to-steel joint that can fail under heavy feed rates, giving industrial users and serious woodworkers added confidence during high-volume runs in plywood, MDF, and composites.
- The P.T.F.E. non-stick coating actively reduces resin and pitch adhesion, which is especially valuable when routing sticky softwoods, melamine, or laminates where residue accumulation typically causes burning and surface degradation.
- At 1/8 in. diameter with a 1/4 in. shank, this bit fills a specific need for fine detail routing, inlay preparation, and narrow slot cutting where larger bits simply cannot fit - without sacrificing the carbide durability required for production-scale use.
Specifications
- Manufacturer Part Number: 811.032.11
- Brand: CMT Orange Tools
- Diameter: 1/8 in.
- Cutting Height: 3/8 in.
- Total Length: 1 3/4 in.
- Shank: 1/4 in.
- Number of Teeth: 2
- Material: Solid Carbide (HWM - Micrograin Carbide)
- Rotation: Right-Hand (RH)
- Series: Short Series
- Product Type: Solid Carbide Straight Bit
Approved Applications
- Straight cuts including dadoes, grooves, and rabbets
- Mortising and pocket routing
- Template routing and pattern work
- Plywood joinery and panel processing
- Detail routing in composites and natural wood
- CNC routing machine production runs
- Industrial-scale routing in plywood, composites, and natural woods
Frequently Asked Questions
What is the difference between a short-series straight bit and a standard-length straight bit?
A short-series bit has a reduced overall length - in this case 1 3/4 in. total - which keeps the bit closer to the collet and minimizes overhang. This shorter reach significantly reduces flex and vibration during cutting, resulting in more accurate groove dimensions and a smoother cut wall. It is the preferred choice when cutting depth requirements allow for it, particularly on CNC machines and router tables where rigidity directly affects part consistency.
Can this bit be used on a CNC routing machine as well as a handheld router?
Yes. The 1/4 in. shank and right-hand rotation are compatible with standard handheld routers, router tables, and CNC routing machines equipped with a 1/4 in. collet. The solid micrograin carbide construction and strict concentricity testing make it especially well-suited for CNC applications where runout and balance are critical to cut quality and spindle longevity.
What materials can this straight bit cut effectively?
This bit is designed for use in a variety of materials including solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, composites, and plastics. The micrograin carbide construction provides the hardness needed to maintain a sharp edge through abrasive sheet goods like MDF and melamine, while the P.T.F.E. non-stick coating helps prevent resin and pitch from bonding to the flutes when routing sticky softwoods or composites.
How does the P.T.F.E. coating benefit everyday routing performance?
The orange P.T.F.E. coating acts as a barrier between the carbide surface and materials that produce resin, pitch, or adhesive residue during cutting. By preventing these substances from bonding to the bit, the coating reduces friction-related heat buildup, helps maintain a cleaner cutting edge between cleanings, and protects the carbide surface from corrosive materials - all of which contribute to a longer effective tool life.
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