15°, 22.5° or 45°? Choosing a Chamfer and Bevel Router Bit
By Premium CNC & Router Bits for Precision Cutting | Published: 2026-11-04
Category: Buying Guides
Pick a chamfer router bit angle by the edge you want: 45° for standard 45-degree chamfers, 22.5° for subtle bevels, 15° for fine details. Match cut height and shank to your router.
Quick answer
Match the bit angle to the edge you want: 45° for a standard chamfer, 22.5° for a subtle bevel, and 15° for a fine detail. Then check cut height and shank size against your router and workpiece.
Why cut height matters as much as angle
The angle sets the slope, but cut height determines how much material the bit can remove in one pass. A taller cut height lets you chamfer thicker stock or take a wider bevel, while a shorter cut height suits trim routers and small workpieces. Always confirm the bit's cutting length and overall diameter fit your router's base opening and your intended depth of cut.
Shank size and router compatibility
Bits with 1/4-inch shanks fit trim routers and compact routers, while 1/2-inch shanks provide more stability in larger routers. If you plan to use a trim router, choose a bit designed for it—like the Whiteside 2292 with its 1-inch large diameter and 1/4-inch shank. For heavier cuts or larger bits, a 1/2-inch shank is the safer choice.
Bearing-guided vs. non-bearing bits
All the bits here are bearing-guided, which means the bearing rides along the workpiece edge to control the cut. This makes them ideal for template work and consistent chamfers. If you need to chamfer an inside corner or a curved edge, a bearing-guided bit may not follow the profile; consider a non-bearing bit or a different approach.
When a subtle bevel beats a sharp chamfer
A 45° chamfer removes a lot of material quickly and creates a strong, decorative edge. But on fine furniture or small boxes, a 45° chamfer can look heavy. A 22.5° or 15° bevel removes less material and leaves a gentler transition, which is often preferred for delicate profiles or when you want to ease an edge without changing its overall shape.
Decision rules for choosing a chamfer or bevel bit
- For a standard 45° chamfer: Choose a 45° chamfer bit when you want a classic 45-degree edge, such as on table tops, posts, or picture frames. The Whiteside 2292 is a 45° bit with a 1-inch diameter and 1/4-inch shank, making it suitable for trim routers.
- For a subtle 22.5° bevel: Choose a 22.5° bevel bit when you need a gentle angle that removes less material, like on fine furniture edges or small boxes. The Whiteside 2307 has a 1/2-inch shank and 7/8-inch cut height.
- For a fine 15° detail: Choose a 15° bevel bit for very small angles on delicate work where a larger chamfer would be too aggressive. The Whiteside 2325 offers a 15/16-inch cut height and 1/2-inch shank.
- For box-making or a 30° angle: Consider the Whiteside 2308 (30° angle, 1/4-inch shank, 3/4-inch cut height) if you want a middle angle or need to trim side boards for six-sided boxes.
- Check shank and router compatibility: Match the bit's shank diameter to your router collet: 1/4-inch for trim routers, 1/2-inch for larger routers. Never use a 1/2-inch shank bit in a 1/4-inch collet without an adapter. Confirm your router's collet size before buying.
- Verify cut height against your stock: Ensure the bit's cut height is sufficient for the depth of chamfer you need. A taller cut height allows deeper chamfers, but may require a larger router for stability. Measure the desired chamfer width and compare to the bit's cutting length.
Product facts
- 45° Chamfer Router Bit x 5/16″ Cut Height – Whiteside 2292 (AstraHP Coated): 1-inch large diameter and 1/4-inch shank, designed for trim routers. Fits compact trim routers and allows chamfering in tight spaces or on smaller workpieces.
45° Chamfer Router Bit x 5/16″ Cut Height – Whiteside 2292 (AstraHP Coated) - 22.5° Bevel Chamfer Bit x 7/8″ Cut Height – Whiteside 2307: 22.5° cut angle with 1/2-inch shank and 7/8-inch cut height. Provides a subtle bevel and the stability of a larger shank for medium-duty routing.
22.5° Bevel Chamfer Bit x 7/8″ Cut Height – Whiteside 2307 - 30 Degree Chamfer Router Bit x 3/4″ Cut Height – Whiteside 2308: 30° cut angle with 1/4-inch shank and 3/4-inch cut height; can also trim side boards for six-sided boxes. Offers a middle-ground angle and a specific box-making application beyond simple edge chamfers.
- 15° Bevel Chamfer Bit x 15/16″ Cut Height – Whiteside 2325: 15° cut angle with 1/2-inch shank and 15/16-inch cut height. Creates a very fine bevel for delicate details, with a shank size suited to larger routers.
Who should choose which angle
Best for
- Woodworkers who need a standard 45° chamfer for edges and joinery
- Trim router users who need a compact 45° bit (Whiteside 2292)
- Furniture makers wanting a subtle 22.5° bevel (Whiteside 2307)
- Detail work requiring a fine 15° bevel (Whiteside 2325)
- Box makers or those needing a 30° angle (Whiteside 2308)
Not for
- Those needing a chamfer on an inside corner or curved edge (bearing-guided bits may not follow)
- Users with only a 1/4-inch collet router who want a 1/2-inch shank bit without an adapter
- Very large chamfers beyond the bit's cut height
