CWT/CWX ERKA4 60° Engraving Router Bit with Stop Ring

The CWT/CWX ERKA-4 engraving router bit is engineered for precision engraving, marking, and fine detail routing on acrylic, plastics, and rigid substrates commonly used in signage production, industrial labeling, and fabrication environments. Manufactured from solid carbide, the tool provides excellent durability, sharp edge retention, and consistent engraving performance during high-speed CNC routing operations.

This tool features a single-flute engraving geometry with a 60° cutting angle, allowing operators to create sharp engraved lines, detailed lettering, and precise graphic elements on acrylic sheets, plastics, and composite materials. The single flute design promotes efficient chip evacuation and helps reduce heat buildup when engraving thermoplastics such as acrylic and polycarbonate.

With a 4.7 mm cutting edge length (CEL), the ERKA-4 supports deeper engraving passes while maintaining precise control and smooth cutting performance across plastics and rigid substrates.

This version includes a precision stop ring (collar) designed for accurate tool positioning when used with Zünd ARC automated routing systems and the CUTWORX Tool Changer, enabling consistent engraving depth and reliable automated tool changes in production environments.

Typical production applications include:

• Engraving acrylic signage and plastic display panels

• Producing detailed logos and text on rigid plastics

• Marking ACM panels and composite signage materials

• Creating industrial identification plates and engraved labels

• Engraving wood panels used in decorative signage and fabrication

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

Materials and Applications

Machine Compatibility