SUBSCRIBE TO OUR NEWSLETTER
Get the latest updates on new products and upcoming sales


The CWT/CWX ER6R4A edge rounding router bit is engineered to create smooth, consistent 2 mm radius edges on rigid sheet materials commonly used in signage, fabrication, and architectural panel production. This tool is ideal for rounding sharp edges to improve safety, appearance, and finish quality on routed parts.
Manufactured from high-quality carbide, the ER6R4A provides excellent wear resistance and consistent cutting performance across plastics, composite panels, metals, and wood materials. The tool geometry is designed to remove sharp edges while maintaining dimensional accuracy, producing a clean rounded edge with minimal finishing required.
With a 6 mm cutting diameter and a maximum cutting edge length (CEL) of 2 mm, the bit produces a 2 mm corner radius while limiting the depth of cut to maintain proper geometry and edge quality. This makes it particularly well suited for finishing operations after panel routing or profiling.
Typical production applications include:
Rounding edges on acrylic and plastic signage panels
Finishing ACM and aluminum composite sign panels
Edge finishing on routed architectural panels
Softening sharp edges on display and retail fixtures
Corner rounding on wood and composite fabrication parts
Note: 6 mm shank router bits are designed for CUTWORX Apex Plus and Apex M Series flatbed cutters with the 1.8 kW liquid cooled router spindle.
Technical Specifications
| Specification | Metric | SAE Equivalent |
|---|---|---|
| Flutes | 1 | 1 |
| Cut Type | Edge Radius | |
| Radius | 2 mm | 0.079 in |
| Routing Diameter | 6 mm | 0.236 in |
| Cutting Edge Length (CEL) | 2 mm | 0.079 in |
| Maximum RPM | 50,000 RPM | 50,000 RPM |
| Shank Diameter | 6 mm | 0.236 in |
| Overall Length | 60 mm | 2.362 in |
| Coating | Solid Carbide | |
| Process Type | CNC Routing – Radius / Edge Finishing |
Materials and Applications
| Material Category | Supported Materials |
|---|---|
| Rigid Board | ACM, Acrylic, Alucobond, Dibond®, Dilite, E-Panel®, EVA – Ethylene Vinyl Acetate, Expanded PVC, Gatorfoam®, Gatorplast®, HDU – High Density Urethane, IGEPA Bond Premium, IGPA, Komatex®, Max Metal®, Plaskolite®, Polycarbonate Board, Polyethylene 4 lbs., Precision Board®, Reynobond, Sign Foam®, Sintra®, Ultra Board® |
| Metal | Aluminum, ChromaLuxe® HD Aluminum, Hard Brass |
| Wood | Balsa, Birch Plywood, MDF, Poplar |
Machine Compatibility
| Brand | Compatible Models / Series |
|---|---|
| CUTWORX | Apex Plus Series, Apex M Series |
| Colex | SX, SXC, PX |
| Kongsberg | XP, C Series |
| Zund | G3, S3 |
| Gerber | MCT |
| Summa | F Series |
| Multicam | Celero, Digital Express |
| Mimaki | CFX Series |
| Laguna | SmartShop, Swift MT |
| AXYZ | CNC router systems |
Get the latest updates on new products and upcoming sales
Thanks for subscribing!
This email has been registered!