Compact Straight-Flute Format
The 1/4-inch cutter and 7/8-inch cutting edge provide a compact format for controlled routing, trimming, slotting, and small-profile work.


Royce Ayr R56-21105 is a 2-flute straight router bit for general-purpose routing in solid wood and hard plastic. It features a 1/4 in cutting diameter, 7/8 in cutting edge, 1/4 in shank, 2-1/2 in overall length, right-hand rotation, HW cutting material, and no coating.
Royce Ayr R56-21105 is a 2-flute straight router bit for general-purpose routing in solid wood and hard plastic. It features a 1/4 in cutting diameter, 7/8 in cutting edge, 1/4 in shank, 2-1/2 in overall length, right-hand rotation, HW cutting material, and no coating.
Not specified by source; confirm machine spindle/router and 1/4 in collet compatibility before use.
The Royce Ayr R56-21105 is a straight-flute router bit designed for clean, general-purpose routing work in solid wood and hard plastic. Its 1/4 in diameter makes it suitable for smaller profile, slotting, trimming, and routing operations where a compact cutter size is required and the machine setup accepts a 1/4 in shank.
With a 7/8 in cutting edge and 2-1/2 in overall length, this tool is intended for controlled-depth routing rather than heavy extended-reach machining. The 2-flute straight geometry gives shops a practical option for conventional routing applications where straight flute cutting action is preferred over spiral chip direction control.
For cabinet shops, millwork operations, plastics fabricators, and woodworking departments, R56-21105 is a practical utility cutter for everyday routing tasks in compatible materials. Final suitability should always be confirmed against the machine, collet, feed setup, material, cutting depth, and rotation direction before production use.
Technical Specifications
The 1/4-inch cutter and 7/8-inch cutting edge provide a compact format for controlled routing, trimming, slotting, and small-profile work.
The verified two-flute straight geometry uses right-hand rotation for conventional routing in compatible wood and hard-plastic applications.
Royce Ayr lists this SKU for general-purpose routing of solid wood and hard plastic.
Before ordering or installing this tool, confirm the machine interface, collet size, shank fit, rotation direction, spindle speed/RPM range, feed speed, cutting depth, tool projection, material suitability, guarding, dust/chip extraction, and available clearance. Do not assume compatibility based only on diameter; verify that the router, CNC spindle, toolholder, or collet system is correct for a 1/4 in shank and right-hand rotation tool.
The Royce Ayr R56-21105 is a 1/4 in 2-flute straight router bit for general-purpose routing in solid wood and hard plastic. With a 7/8 in cutting edge, 1/4 in shank, and 2-1/2 in overall length, it is a compact utility cutter for controlled routing, trimming, slotting, and small-profile work in compatible woodworking and plastics applications.
Built with HW cutting material, right-hand rotation, and an uncoated straight-flute design, R56-21105 is suited for shops that need a practical straight router bit for everyday production and setup work. Confirm collet size, rotation, feed rate, RPM, cutting depth, and material compatibility before use.