Product Description
CMT Round Nose Bit Set (3-Piece) with Radii 1/8", 1/4", and 3/8" by CMT gives woodworkers a versatile collection of core box bits engineered for carving semi-circular coves, decorative grooves, fluting, and veining on doors, drawer fronts, panels, and virtually any wood or wood-derivative surface. Each carbide-tipped bit in this set is built for right-hand rotation and fits a 1/2" shank, making the set compatible with handheld routers, router tables, and CNC routing machines. Whether you're adding signature motifs to cabinet doors or cutting clean decorative channels in MDF and melamine, this three-piece collection covers the most widely used round nose profiles in a single purchase.
Key Features
- 3-Piece Set with Radii 1/8", 1/4", and 3/8" - covers the three most commonly used round nose profiles so you can switch between delicate and bolder decorative grooves without sourcing bits separately.
- Carbide-Tipped (HW/TCT) Cutting Flutes - hard carbide tips maintain a sharp edge longer than high-speed steel, letting you work through solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic with consistent, clean results.
- 2-Flute Design - dual cutting edges produce a smooth, balanced cut and reduce surface tear-out on decorative routing applications where a clean finish matters most.
- 1/2" Shank - the larger shank diameter provides greater rigidity and reduces vibration compared to smaller shanks, resulting in truer cove profiles and a finer surface quality.
- Right-Hand (RH) Rotation - standard clockwise rotation is compatible with the vast majority of handheld routers, router tables, and CNC machines, making setup straightforward.
- CMT Orange Shield Non-Stick Coating - prevents the bit from heating up excessively, reduces pitch and resin buildup on the cutting edges, protects against corrosion, and extends overall tool life - meaning less cleaning time and longer intervals between bit replacements.
- SinterHIP Industrial Chrome Carbide - carbide processed via Hot Isostatic Pressing (HIP) prevents material failure and extends cutting life, so each bit stays sharp and reliable through demanding production runs.
- Tri-Metal Brazing (Silver-Copper-Silver) - this three-layer brazing method protects the carbide tip when cutting harder wood or composites and reduces the chance of failed welds, keeping the cutting edge securely bonded even under stress.
- Anti-Kickback Design - controls depth of cut and minimizes kickback risk, adding an important layer of safety when routing decorative profiles freehand or on a router table.
Why This Product
- Instead of purchasing three individual round nose bits at separate times, this set delivers the 1/8", 1/4", and 3/8" radii together - giving you immediate flexibility for a wide range of decorative routing tasks from fine veining to broader fluted channels.
- The combination of CMT Orange Shield coating, SinterHIP carbide, and Tri-Metal brazing means the bits resist heat buildup, stay sharp through extended use, and hold their carbide tips securely - reducing the frequency and cost of bit replacement over time.
- With a 1/2" shank and anti-kickback geometry, this set is suited for use on handheld routers, router tables, and CNC routing machines - making it a practical choice for both shop professionals and serious hobbyists who work across multiple setups.
- The bits work across a broad range of materials - solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic - so a single set serves multiple project types without the need for material-specific tooling.
Specifications
- Manufacturer Part Number: 814.501.11
- Brand: CMT Orange Tools
- Shank: 1/2"
- Radii Included: 1/8", 1/4", 3/8"
- Number of Teeth: 2
- Blade Material: Carbide-Tipped (HW/TCT)
- Rotation: Right-Hand (RH)
- Pieces in Set: 3
- Country of Origin: Made in Italy
Approved Applications
- Routing coves and semi-circular channels
- Decorative groove routing on doors and drawer fronts
- Fluting on columns, panels, and furniture components
- Veining and fine decorative accents
- Personalized motif routing on any wood or wood-derivative surface
What's Included
- 1x CMT Round Nose Bit - Radius 1/8", 1/2" Shank
- 1x CMT Round Nose Bit - Radius 1/4", 1/2" Shank
- 1x CMT Round Nose Bit - Radius 3/8", 1/2" Shank
Frequently Asked Questions
What routers are compatible with this bit set?
These bits feature a 1/2" shank and right-hand (RH) rotation, making them compatible with handheld routers, router tables, and CNC routing machines that accept a 1/2" collet and standard clockwise-rotating bits.
What materials can these round nose bits cut?
The carbide-tipped flutes are suitable for use in solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic - covering most common woodworking and cabinetry materials.
What is the purpose of the CMT Orange Shield coating on these bits?
The CMT Orange Shield non-stick coating prevents the bit from heating up excessively during use, reduces pitch and resin buildup on the cutting edges, protects against corrosion, and extends tool life - helping the bits perform cleanly for longer between cleanings and replacements.
Why does this set include three different radii?
The 1/8", 1/4", and 3/8" radii represent the most widely used round nose bit sizes for decorative routing work such as fluting, veining, and cove cutting. Having all three in a single set allows you to match the groove profile to your design without needing to source each bit separately.
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