Royce Ayr Triple Flute Upcut Spiral Mill End Bit 1/8 in (3.175 mm)
Triple-Flute Upcut Spiral
Mill End Router Bit
Solid-carbide right-hand triple-flute upcut spiral mill end router bit designed for precision CNC routing in hard plastics and finish passes on solid wood. Its 1/8-inch cutting diameter, 1/2-inch cutting edge, 1/4-inch shank, and 2-inch overall length support detail routing, small internal features, fine profiles, and controlled finishing work.
Main Product Description
The Royce Ayr Triple-Flute Upcut Spiral Mill End Router Bit R58-01201 is designed for precision CNC routing where a small cutting diameter and controlled finish are required. Its upcut spiral geometry assists chip evacuation by directing chips upward through the cut, supporting detail routing, internal features, fine profiles, and finishing operations.
The 0.1250-inch cutting diameter, 0.500-inch cutting edge, 0.250-inch shank, and 2.000-inch overall length provide a compact format for compatible CNC router collets and toolholders. Royce Ayr identifies this triple-flute upcut series for routing hard plastics and performing finish passes on solid wood.
This solid-carbide tool uses three upcut spiral flutes and right-hand rotation. RPM and coating are not specified by the supplied source and should be confirmed before programming or ordering when required. Because the cutting diameter is only 1/8 inch, accurate collet condition, minimum practical projection, low runout, suitable feeds and speeds, light depth-per-pass, rigid workholding, and effective chip evacuation are essential.
Best Fit Applications
Product Highlights
Triple-Flute Finish Control
The three-flute configuration supports controlled finishing work in compatible hard plastics and solid wood.
Upcut Chip Evacuation
The upcut spiral geometry directs chips upward through the cut to support cleaner chip flow during precision routing.
Precision 1/8-Inch Format
The small cutting diameter is suited to detail work, internal features, fine profiles, and light finishing operations.
Compatibility & Installation Notes
Confirm that the spindle, collet, and toolholder accept an exact 1/4-inch (6.35 mm) shank, support right-hand rotation, and provide adequate clearance for the 2-inch overall length and required projection. Coating and RPM are not specified by the supplied source, so verify those details before programming or installation. Because this is a small 1/8-inch tool, minimize runout and projection, use conservative pass depths, maintain rigid workholding, and match feed rate, spindle speed, chip evacuation, and material suitability to the specific operation.
Improve Small-Diameter Finish Routing
The Royce Ayr Triple-Flute Upcut Spiral Mill End Router Bit R58-01201 provides a solid-carbide solution for routing hard plastics and performing finish passes on solid wood.
Its 1/8-inch cutting diameter, 1/2-inch cutting edge, 1/4-inch shank, three-flute upcut geometry, right-hand rotation, and 2-inch overall length support precise detail and finishing operations when correctly held and operated.