Royce Ayr 2-Flute Downcut Spiral Router Bit 5/32 in (3.97 mm)
2-Flute Downcut Spiral
Router Bit
Compact solid-carbide downcut spiral router bit designed for clean top-edge routing in solid wood, wood composites, laminated materials, and selected plastics. Its 5/32-inch cutting diameter, 5/8-inch cutting length, 1/4-inch shank, and 2-inch overall length support detailed grooves, dados, profiles, and small-diameter CNC machining.
Main Product Description
The Royce Ayr 2-Flute Downcut Spiral Router Bit R57-22244 is part of the R57-222/322 downcut spiral family. It is designed for routing solid wood, wood composites, laminated panels, and selected plastics, using downcut geometry that directs cutting pressure toward the workpiece surface.
The 0.1563-inch cutting diameter and 0.625-inch cutting length support smaller grooves, dados, profiles, and detailed routing passes. The downcut action helps control top-surface chipping in laminated, composite, and finished materials where upper-edge quality is a priority.
The 0.250-inch shank and compact 2.000-inch overall length suit compatible CNC routers and routing equipment. Correct collet condition, minimum practical projection, verified runout, suitable spindle direction, RPM, feed rate, cutting depth, workholding, and chip evacuation are essential for maintaining finish quality and tool life.
Best Fit Applications
Product Highlights
Downcut Top-Edge Control
The spiral geometry directs cutting pressure downward to help reduce top-surface chipping in laminated and finished materials.
Compact 5/32-Inch Diameter
The small cutting diameter and 5/8-inch cutting length support detailed grooves, profiles, and controlled routing passes.
Solid-Carbide Construction
The carbide body supports rigidity, cutting-edge retention, and repeatable dimensions in compatible production applications.
Compatibility & Installation Notes
Confirm that the router, spindle, and toolholder accept an exact 1/4-inch (6.35 mm) shank. Inspect and clean the collet, collet nut, and tool shank, minimize unsupported projection, verify runout, and confirm spindle direction before machining. Match RPM, feed speed, plunge method, and cutting depth to the selected material, and maintain effective chip evacuation because downcut geometry can pack chips in deeper grooves.
Improve Small-Diameter Top-Edge Quality
The Royce Ayr 2-Flute Downcut Spiral Router Bit R57-22244 provides a compact solid-carbide solution for detailed routing in solid wood, wood composites, laminated materials, and selected plastics.
Its 5/32-inch diameter, 5/8-inch cutting length, 1/4-inch shank, and 2-inch overall length support clean top-edge machining when correctly held and operated within suitable cutting parameters.