Single-Flute O-Flute Geometry
The generous single-flute chip space supports controlled chip formation and evacuation when routing compatible hard-plastic materials.


Solid-carbide, right-hand O-flute upcut router bit designed for routing hard plastics. Its 1/16-inch cutting diameter, 1/4-inch cutting edge, 1/8-inch shank, and 2-inch overall length combine with single-flute geometry and an upcut form that supports effective chip removal in compatible CNC routing applications.
This single-flute solid-carbide tool uses polished O-flute cutting geometry and a right-hand upcut design to support clean chip evacuation while routing compatible hard-plastic materials.
Designed for compatible CNC routers using a precision 1/8-inch (3.175 mm) collet or approved toolholding system with sufficient clearance for the 2-inch overall length.
The Royce Ayr Single-Flute O-Flute Hard-Plastic Upcut Router Bit R63-71609 is engineered for routing hard plastics in compatible CNC systems. Its 0.0625-inch cutting diameter and 0.250-inch cutting edge provide a compact configuration for fine profiling, narrow slotting, trimming, and controlled material removal in rigid-plastic and display-component applications.
The single-flute O-flute geometry provides generous chip space relative to the tool diameter, while the upcut form carries chips away from the cutting zone. This combination supports effective chip evacuation, helps limit chip recutting, and reduces heat accumulation when operated with suitable hard-plastic machining parameters.
The 0.125-inch shank and 2.000-inch overall length require a compatible precision collet or approved toolholder. Before production, verify collet condition, runout, right-hand spindle rotation, tool projection, spindle speed, feed rate, depth per pass, workholding, plastic compatibility, and chip extraction.
Technical Specifications
The generous single-flute chip space supports controlled chip formation and evacuation when routing compatible hard-plastic materials.
The right-hand upcut design carries chips away from the cutting zone to support cleaner routing and reduce chip recutting.
The 1/16-inch cutting diameter, 1/4-inch cutting edge, and 1/8-inch shank suit detailed CNC hard-plastic routing operations.
Confirm that the CNC router spindle or toolholder accepts an exact 1/8-inch (3.175 mm) shank and provides sufficient clearance for the 2-inch (50.8 mm) overall length. Inspect the collet and nut, minimize unsupported tool projection, verify right-hand rotation and runout, and establish spindle speed, feed rate, depth per pass, workholding, hard-plastic compatibility, and chip extraction according to the machine and approved shop procedures.
The Royce Ayr Single-Flute O-Flute Hard-Plastic Upcut Router Bit R63-71609 provides a solid-carbide solution for routing hard plastics. Its 1/16-inch diameter, 1/4-inch cutting edge, 1/8-inch shank, single-flute geometry, and 2-inch overall length support fine profiling, narrow slotting, trimming, and detailed production routing.
Polished O-flute cutting geometry and an upcut form support effective chip removal when the tool is correctly held and operated within suitable hard-plastic machining parameters.