Flex-Hone Cylinder Ball-Hone 77-83mm for Yamaha RAPTOR 350 2004-2013

Fast and efficient deglazing and finish honing, providing a consistent cross-hatch pattern for oil retention and piston ring seating. Ball hone style features 320 grit globules of silicone carbide making it perfect for steel sleeved and Nikasil coated cylinders. Several sizes available for optimal cylinder bore fitment.