Flex-Hone Cylinder Ball-Hone 71-73mm for KTM 300 SX 1993-1996

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.