Rigid 5/8-Inch Format
The 5/8-inch cutting diameter and shank support compatible heavier CNC routing applications.


A rigid solid-carbide right-hand compression spiral router bit for CNC routing laminated, veneered, and wood-composite panels where controlled top and bottom edge quality is required. Its 5/8-inch cutting diameter and shank, 1-7/8-inch cutting edge, 1/2-inch upcut section, and 4-inch overall length support compatible heavier production-routing applications.
This larger-format production tool combines solid-carbide construction, two compression flutes, and right-hand rotation to help control chipping on both faces of compatible laminated, veneered, and composite panels.
Designed for compatible CNC routers using precision 5/8-inch collets or approved toolholding systems. Confirm spindle capacity, toolholder compatibility, machine clearance, tool projection, and panel thickness before production use.
The Royce Ayr 2-Flute Compression Spiral Router Bit R60-11416 is designed for CNC routing laminated or veneered wood and compatible wood-composite panels where clean top and bottom edges are important. Its compression geometry combines upward and downward shearing action to help reduce chipping on both faces of the workpiece.
The tool features a 0.6250-inch cutting diameter, 1.875-inch cutting edge, 0.500-inch upcut section, 0.625-inch shank, two flutes, right-hand rotation, no coating, and a 4.000-inch overall length. This larger, rigid configuration supports compatible cabinet, casework, millwork, nested-panel, profile-cutting, and through-cutting applications.
The 1/2-inch upcut section must be positioned correctly for the material thickness and programmed depth so the compression transition engages the workpiece as intended. Correct collet condition, tool projection, spindle speed, feed rate, pass strategy, hold-down, chip evacuation, and dust extraction remain essential for maintaining finish quality and tool life.
Technical Specifications
The 5/8-inch cutting diameter and shank support compatible heavier CNC routing applications.
The 4-inch overall length provides a comparatively compact format where correct projection and clearance are available.
The 1/2-inch upcut section should be matched carefully to panel thickness and programmed cutting depth.
Confirm that the CNC router spindle, collet, and toolholder accept an exact 5/8-inch (15.88 mm) shank. Verify right-hand rotation, tool projection, runout, available clearance, guarding, dust extraction, hold-down, RPM, feed rate, pass strategy, and material thickness before machining. Position the 1/2-inch upcut section and remaining downcut geometry correctly for the intended routing operation.
The Royce Ayr 2-Flute Compression Spiral Router Bit R60-11416 provides a solid-carbide solution for CNC routing laminated, veneered, and composite panels where clean top and bottom edge quality is required. Its 5/8-inch diameter and shank, 1-7/8-inch cutting edge, 1/2-inch upcut section, and 4-inch overall length support compatible heavier production-routing applications.
Two-flute compression geometry and right-hand rotation support controlled panel machining when the tool is correctly held, positioned through the material, and operated within suitable machining parameters.