• XRT - quarter
• Ultra duty SINGLE-HORN servo arm
• 15T = ø8 mm mega-spline
• 7075-T6 aircraft aluminum
• Threaded at 15 mm (nominal)
• Mount - M3 Allen head bolt

This ultra duty SINGLE-HORN aluminum servo arm is CNC-machined from a solid billet of 7075-T6 aircraft aluminum, broached for the mega spline (15T ø8mm), and threaded in one place for M3 mounting hardware.

Installation is axially on 8mm diameter, 15T-spline shaft (lightly greased), and secured with an M3 Allen-head machine-thread bolt. Disassembly is the reverse, remove securing bolt.

Mounting positions (M3 thread)

• 15mm