Autoclaving represents the recommended sterilization method for Ragnell Kilner tungsten carbide scissors, utilizing saturated steam at specified temperatures and pressure to ensure complete microorganism elimination without damaging the instrument. For tungsten carbide instruments, avoid cold sterilization solutions containing benzyl ammonium chloride, which permanently destroys carbide inserts; instead, always autoclave in an unlocked open position with proper surgical lubricant application to preserve long-term performance and durability.