Product Description
CMT Contractor Chamfer Bit - 1-3/8" x 7/16", 45 deg. angle, 1/4" shank is a professional-grade routing bit from CMT designed to produce clean, accurate bevel and chamfer edges on wood and composite materials. Whether you are edge-jointing boards, adding decorative beveled profiles to furniture, or creating perfectly aligned box joints, this two-flute carbide-tipped bit delivers consistent results in handheld routers and router table setups alike. The anti-kickback design and heat-treated shank and body make it a reliable choice for contractors and woodworkers who demand precision and safety on every pass.
Key Features
- 45 deg. chamfer angle - delivers a consistent, repeatable bevel profile ideal for decorative edges, box assembly alignment, and edge jointing without guesswork.
- Two carbide-tipped cutting edges (HW material) - hard-wearing tungsten carbide tips stay sharp longer through hardwood, softwood, plywood, MDF, and laminates, reducing the frequency of bit replacement.
- Anti-kickback design - controls the depth of cut on each pass, minimizing the risk of dangerous kickback and improving overall routing safety and accuracy.
- Heat-treated shank and body - enhanced durability under demanding cutting conditions means the bit resists wear and maintains structural integrity across extended use.
- Bottom bearing included - the pilot bearing rides along the workpiece edge to guide the cut at a consistent depth and angle, eliminating the need for fences or additional setup on most applications.
- 1/4" shank - fits a wide range of standard handheld routers and router tables, making this bit broadly compatible with common workshop tools.
- Right-hand rotation (RH) - compatible with conventional router spindle direction for straightforward, no-adjustment installation.
Why This Product
- The included bottom bearing eliminates the need for separate fence setup when chamfering edges freehand, saving time and simplifying workflow for both job-site contractors and shop woodworkers.
- The anti-kickback body geometry controls material engagement per pass, making this chamfer bit a safer option compared to standard profiles - especially when routing longer or wider workpiece edges.
- With two carbide-tipped cutting edges and a heat-treated body, this bit is built for repeated use across demanding materials including hardwood, MDF, laminates, and melamine without rapid edge degradation.
- The compact 1/4" shank and 2-3/16" total length make this bit practical for use in trim routers and compact router tables where space and collet size are limiting factors.
Specifications
- Manufacturer Part Number: 83605
- Brand: CMT Orange Tools
- Angle: 45 deg.
- Diameter: 1-3/8"
- Cutting Height: 7/16"
- Total Length: 2-3/16"
- Shank: 1/4"
- Number of Teeth: 2
- Rotation: Right-hand (RH)
- Material: Carbide-Tipped (HW)
Approved Applications
- Chamfering and beveling wood edges
- Decorative edge profiling on furniture and cabinetry
- Edge jointing for tight board-to-board alignment
- Creating precisely angled edges for box and frame assembly
- Easing sharp edges on hardwood, softwood, plywood, MDF, laminates, and melamine panels
What's Included
- 1x CMT 83605 Contractor Chamfer Bit
- 1x Bottom pilot bearing
Frequently Asked Questions
What type of router can this chamfer bit be used with?
This bit has a 1/4" shank and right-hand rotation, making it compatible with any handheld router or router table that accepts a 1/4" collet - including compact trim routers and full-size router table setups.
Does this bit require a fence or guide for accurate chamfering?
No. A bottom pilot bearing is included with the bit. The bearing rides along the edge of the workpiece and guides the cut at a consistent angle and depth, so no fence is required for most standard chamfering and edge beveling tasks.
What materials can this chamfer bit cut?
The two carbide-tipped cutting edges are suited for solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic. The HW carbide material grade provides the hardness needed for clean cuts across this range of materials.
What does the anti-kickback design do on this bit?
The anti-kickback body limits how much material the bit can engage in a single pass. This controlled depth of cut reduces the risk of the bit grabbing the workpiece unexpectedly, improving both routing safety and the consistency of the finished bevel.
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