Double Roundover vs Double Chamfer Router Bits
By Premium CNC & Router Bits for Precision Cutting | Published: 2026-10-21
Category: Comparisons
Compare double roundover and double chamfer router bits for edge profiling. Learn the trade-offs between radius and angle to choose the right bit for your project.
Quick answer
Choose a double roundover bit for soft, rounded edges and a double chamfer bit for sharp, angled edges. The roundover creates a smooth radius, while the chamfer gives a classic bevel.
Profile shape: radius vs angle
The fundamental difference is the shape they cut. A double roundover bit produces a convex radius, softening the edge with a smooth curve. The radius size (e.g., 1/8", 1/4") determines the roundness. A double chamfer bit cuts a straight angled bevel, creating a sharp, defined edge. The angle (e.g., 45°) determines the slope.
Versatility: bead profiles from roundover bits
Whiteside double roundover bits offer extra versatility. By swapping the included bearing, you can also cut double beads into your workpiece. For example, the 1/8" double roundover bit (Whiteside 2160) can use a B20 bearing for a 1/16" bead or a B27 bearing for a 1/8" bead. This saves time and effort if you need both profiles. Double chamfer bits, like the Whiteside 2174, are dedicated to the chamfer profile and do not offer this multi-profile capability.
Cutting length and adjustability
Both bit types feature adjustable cutting length, but the maximum differs. The double chamfer bit (Whiteside 2174) offers a maximum cut length of 1-5/8", which is longer than the 1-1/8" of the 1/8" double roundover bit (Whiteside 2160) or the 1-1/4" of the 3/16" double roundover bit (Whiteside 2162). If you need to cut a deeper chamfer in thicker stock, the double chamfer bit has the advantage.
Trade-offs at a glance
- Edge appearance: Roundover gives a smooth, soft curve. Chamfer gives a sharp, angled bevel.
- Multi-profile capability: Double roundover bits can also cut beads by swapping bearings. Double chamfer bits are single-profile. If you need beads, a double roundover bit saves buying a separate bit.
- Maximum cutting depth: Double chamfer bit (Whiteside 2174) cuts up to 1-5/8" deep. Double roundover bits cut up to 1-1/8" or 1-1/4" depending on radius. For thick stock, the double chamfer bit offers more depth.
Product facts
- 45° Double Chamfer Router Bit – Whiteside 2174: 45° Double Chamfer Router Bit – Whiteside 2174. Adjustable cutting length up to 1-5/8". Recommended RPM: 12,000. This bit cuts a classic 45° bevel and offers the longest cutting depth among these options, making it suitable for thicker workpieces.
45° Double Chamfer Router Bit – Whiteside 2174 - 1/8″ Double Roundover Router Bit – Whiteside 2160: 1/8" Double Roundover Router Bit – Whiteside 2160. By swapping bearings, it can also cut double beads. Recommended RPM: 14,000. This bit not only rounds edges but can also create bead profiles with bearing swaps, increasing its versatility for decorative work.
1/8″ Double Roundover Router Bit – Whiteside 2160
Which edge profile bit fits your project?
Best for
- Double roundover: projects needing soft, rounded edges like table tops, shelves, or children's furniture.
- Double chamfer: projects needing sharp, angled edges like drawer fronts, cabinet doors, or modern furniture.
Not for
- Double roundover: if you need a sharp, defined bevel or deeper cuts over 1-1/4".
- Double chamfer: if you want a rounded edge or the ability to cut bead profiles.
