Royce Ayr 2-Flute Downcut Spiral Router Bit 5/8 in (15.88 mm)
2-Flute Downcut Spiral
Router Bit
Solid-carbide right-hand downcut spiral router bit designed for clean top-edge CNC routing in solid wood, wood composites, laminated panels, plywood, and selected plastics. Its 5/8-inch cutting diameter, 1-5/8-inch cutting edge, matching 5/8-inch shank, and 3-1/2-inch overall length support deeper dados, grooves, pockets, profiles, cabinet parts, casegoods components, and panel-processing work.
Main Product Description
The Royce Ayr 2-Flute Downcut Spiral Router Bit R57-32237 is part of the General Purpose Downcut Spiral family and is built for CNC routing where clean top-edge quality and controlled surface finish are important. Its downcut geometry directs cutting pressure toward the workpiece, helping reduce upper-edge chipping during dados, grooves, pockets, profiles, and panel-feature machining.
The 5/8-inch cutting diameter and 1-5/8-inch cutting edge provide useful reach for deeper routing operations in cabinet parts, casegoods components, fixture parts, millwork details, plywood, and laminated or wood-composite panels. The matching 5/8-inch shank and 3-1/2-inch overall length require a correctly sized collet or toolholder and adequate machine clearance.
This uncoated solid-carbide tool uses two downcut spiral flutes and right-hand rotation. Supplier-listed suitability includes hardwood, softwood, particle board, fiberboard, laminate material, plywood, hard plastic, soft plastics, and an aluminum or non-ferrous notation; material suitability and cutting parameters must be confirmed before production. Correct runout, projection, RPM, feed rate, chipload, pass depth, workholding, and chip or dust evacuation remain essential.
Best Fit Applications
Product Highlights
Downcut Top-Edge Control
The downcut spiral directs cutting pressure toward the workpiece to help reduce upper-edge chipping in laminated and wood-composite materials.
5/8-Inch Production Format
The matching cutting diameter and shank support compatible CNC router setups requiring a larger solid-carbide downcut tool.
1-5/8-Inch Cutting Reach
The verified cutting-edge length provides useful capacity for deeper dados, grooves, pockets, profiles, and panel-routing operations.
Compatibility & Installation Notes
Confirm that the spindle, collet, and toolholder accept an exact 5/8-inch (15.88 mm) shank, support right-hand rotation, and provide adequate clearance for the 3-1/2-inch overall length and required projection. Verify the programmed cutting depth against the 1-5/8-inch cutting edge. Inspect and clean the collet, minimize unsupported projection, verify runout, and match RPM, feed rate, chipload, pass depth, workholding, guarding, and chip or dust evacuation to the selected material. Confirm parameters before using the supplier-listed aluminum or non-ferrous notation.
Improve Deeper Downcut Routing
The Royce Ayr 2-Flute Downcut Spiral Router Bit R57-32237 provides an uncoated solid-carbide solution for clean top-edge CNC routing in solid wood, wood composites, laminated panels, plywood, and selected plastics.
Its 5/8-inch cutting diameter, 1-5/8-inch cutting edge, matching shank, two-flute downcut geometry, right-hand rotation, and 3-1/2-inch overall length support controlled production machining when correctly held and operated.