XEBEC Stone™ Flexible Shaft is a deburring tool that utilizes ceramic fiber filament that maintains an overwhelming grinding power. Ideal for deburring cross holes. An abrasive ceramic fiber stone is affixed to a flexible shaft that absorbs vibrations, allowing soft contact with the workpiece. Consistent cutting performance. No breaking, No cracking, No chipping. Numerous successful applications in aerospace, orthopedic medical device, and automotive industries.