Selecting a Beading Router Bit for Decorative Edges
By Premium CNC & Router Bits for Precision Cutting | Published: 2026-10-18
Category: Buying Guides
Learn how to choose the right beading router bit for decorative edges. Compare bead profiles, radii, and coatings to match your project needs.
Quick answer
Choose a beading router bit by matching the bead radius to your desired profile depth and the shank size to your router collet. For decorative edges on trim or molding, a 1/8" bead bit works well for light detail, while a 3/16" full bead bit creates a bolder, more pronounced edge.
Bead Profile vs. Full Bead: What’s the Difference?
Standard beading bits cut a single indented curve along the edge of the workpiece. Full bead bits cut a dual-radius point that can be used to round under or round over the edge, making them more versatile. If you want a simple, consistent bead line, a standard beading bit is the straightforward choice. If you need the option to create a rounded edge on both sides of the workpiece, a full bead bit gives you that flexibility.
The trade-off is that full bead bits require more setup attention because you can flip the bit or adjust depth to achieve different effects. For a one-pass decorative edge, a standard beading bit is simpler to use.
Radius and Cut Length: Matching the Bit to Your Material
The bead radius determines the depth of the decorative curve. A 1/8" radius creates a subtle, fine detail—ideal for small trim or delicate profiles. A 3/16" radius produces a more pronounced bead that stands out on larger workpieces like cabinet doors or furniture edges.
Cut length matters because it limits how thick a workpiece you can profile in a single pass. A 1/2" cut length handles most edge work on standard stock, while a 5/16" cut length is best for thinner material or shallow passes. Always match the cut length to your material thickness to avoid burning or chatter.
Coating and Bearing Considerations
AstraHP coating reduces heat buildup and friction, which helps the bit stay sharper longer—especially useful when working with hardwoods or abrasive materials like MDF. All the bits listed here include this coating, so you get consistent performance across the lineup.
Bearing size affects how the bit rides along the workpiece edge. Some bits come with multiple bearings (like the B6 & B7 on the 1/8" full bead bit) so you can adjust the profile depth or use the bit with a template. If you need to change the bead position without changing the bit, a bit with interchangeable bearings adds flexibility.
Decision rules for choosing a beading router bit
- Match the bead radius to the profile depth you want: For a subtle, fine bead line, choose a 1/8" radius bit. For a more prominent decorative edge, choose a 3/16" or 1/4" radius bit.
- Check the cut length against your material thickness: Use a bit with a cut length at least as deep as the profile you intend to cut. A 1/2" cut length works for most edge work; a shorter 5/16" cut length is best for shallow passes or thin stock. If your material is thicker than the cut length, you may need multiple passes or a different bit.
- Decide between standard beading and full bead: Standard beading bits cut a single indented curve. Full bead bits cut a dual-radius point and can also round over or round under the edge. Choose full bead if you want versatility; choose standard beading for a simple, one-pass decorative edge.
- Verify shank size and bearing compatibility: All bits listed here have a 1/4" shank, which fits most handheld routers and many CNC spindles. If your router uses a 1/2" collet, you will need a reducer or a bit with a 1/2" shank. Bits with interchangeable bearings (like the 1/8" full bead) let you adjust the profile depth without changing the bit. Check your router collet size before purchasing.
- Consider coating for longevity: AstraHP coating reduces heat and friction, helping the bit stay sharp longer. This is especially beneficial for hardwoods or abrasive materials. All bits listed here include this coating.
Product facts
- 1/8″ Beading Router Bit – Whiteside 2100C (AstraHP Coated): 1/8" radius, 1/2" cut length, 3/4" large diameter, recommended RPM 14,000, AstraHP coated, made in USA. This bit is a good match for light decorative beading on trim or thin stock where a subtle curve is desired.
1/8″ Beading Router Bit – Whiteside 2100C (AstraHP Coated) - 1/4″ Beading Router Bit – Whiteside 2101 (AstraHP Coated): 1/4" radius, 1/2" cut length, 1" large diameter, includes B2 bearing (3/16" ID, 3/8" OD), recommended RPM 13,000, AstraHP coated, made in USA. The larger radius creates a more prominent bead, and the included bearing allows for consistent edge following without a separate guide.
1/4″ Beading Router Bit – Whiteside 2101 (AstraHP Coated) - 1/8″ Full Bead Router Bit – Whiteside 3190 (AstraHP Coated): Full bead bit with 1/8" radius, 5/16" cut length, 7/8" large diameter, includes B6 & B7 bearings, recommended RPM 14,000, AstraHP coated, made in USA. The dual bearings let you adjust the profile depth, and the full bead design lets you round over or round under the workpiece edge.
- 3/16″ Full Bead Router Bit – Whiteside 3192 (AstraHP Coated): Full bead bit with 3/16" radius, 1/2" cut length, 1" large diameter, overall length 2-3/8", AstraHP coated, made in USA. The larger radius and longer cut length make this bit suitable for bolder decorative edges on thicker stock.
Which bit fits your project?
Best for
- Light decorative beading on trim or thin stock: 1/8" beading router bit (Whiteside 2100C)
- Bolder, more prominent bead lines: 1/4" beading router bit (Whiteside 2101)
- Versatile edge profiling that can round over or round under: full bead bits (Whiteside 3190 or 3192)
Not for
- Heavy stock removal or deep profiles: consider a larger radius bit or a different profile bit
- Projects requiring a sharp V-groove or cove profile: beading bits produce rounded curves, not sharp angles
