Product Description
The CMT 818.159.11B Dovetail Bit with Bearing is a precision-crafted routing tool engineered to produce the classic trapezoidal dovetail profile - a joint prized by both professional woodworkers and dedicated hobbyists for its mechanical strength and visual appeal. Featuring a 7 deg. cutting angle, a 5/8" cutting diameter, and a 3/8" shank, this right-hand rotation bit delivers clean, accurate dovetail cuts in solid hardwood, softwood, plywood, and sheet goods. The integrated bearing guide helps direct the cut with consistency, making it well suited for use on a router table with a fence or in freehand dovetail jig applications.
Key Features
- 7 deg. Dovetail Angle - produces the precise trapezoidal geometry needed for tight-fitting dovetail joints and sliding dovetails, reducing the need for hand-fitting or rework.
- 5/8" Cutting Diameter - provides enough material removal per pass to form well-defined dovetail profiles without overloading the router motor.
- 1" Cutting Height - allows the bit to cut through typical drawer side stock and box components in a single pass, improving workflow efficiency.
- Integrated Bearing Guide - helps maintain a consistent reference against the workpiece edge or jig surface, reducing drift and improving repeatability across multiple cuts.
- 3/8" Shank - compatible with a wide range of compact and mid-size routers and router tables equipped with 3/8" collets, expanding versatility.
- 2-Flute (HW) Carbide Cutting Edges - hard carbide material (HW) holds a sharp edge longer through demanding cuts in hardwood and composite sheet materials, extending tool service life.
- Right-Hand Rotation - matches the standard spindle direction of virtually all routers and router tables, ensuring safe and predictable cutting performance.
- 2-11/16" Total Length - compact overall length keeps the bit stable and reduces vibration during plunge and pass-through operations.
Why This Product
- The 7 deg. angle combined with a 5/8" diameter makes this bit a practical choice for drawer box construction and box making where snug, interlocking dovetail joints are required without complex setup.
- Running a straight bit for the first pass before switching to this dovetail bit reduces cutting stress and extends edge life - a technique directly supported by the bit's design for multi-pass routing strategies.
- The bearing guide makes this bit a strong fit for router table use with a fence, allowing users to achieve repeatable chamfer angles and sliding dovetail channels that would otherwise require difficult freehand control.
- With a 1" cutting height and hard carbide (HW) construction, this bit handles the full thickness of common drawer side and box stock in typical woodworking applications, cutting time and setup steps.
Specifications
- Manufacturer Part Number: 818.159.11B
- Brand: CMT Orange Tools
- Angle: 7 deg.
- Diameter: 5/8"
- Cutting Height: 1"
- Total Length: 2-11/16"
- Shank: 3/8"
- Number of Teeth: 2
- Material: HW
- Rotation: RH
Approved Applications
- Dovetail Joints
- Sliding Dovetails
- Drawer Construction
- Box Making
Frequently Asked Questions
What is the cutting angle of the CMT 818.159.11B?
This dovetail bit cuts at a 7 deg. angle, which produces the tapered trapezoidal profile characteristic of traditional dovetail joinery used in drawers, boxes, and frame construction.
Can this bit be used on a router table as well as a handheld router?
Yes. The 3/8" shank and integrated bearing guide make it compatible with both handheld router setups - particularly with dovetail jigs - and router table configurations equipped with a fence. Using it on a router table with a fence is especially helpful for achieving consistent sliding dovetail channels.
Is it recommended to make multiple passes with this dovetail bit?
For best results and reduced stress on the bit, it is recommended to run a first pass with a straight bit before using the dovetail bit for the final profile pass. Always verify that the dovetail has been cut through completely and smoothly before removing the workpiece.
How many cutting flutes does this bit have, and what material are they made from?
The CMT 818.159.11B has 2 cutting flutes made from HW (hard carbide) material. This carbide construction is designed to maintain a sharp cutting edge through repeated use in hardwood, softwood, and composite board materials.
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