Flex-Hone Flex-Hone Cylinder Ball-Hone 39-41mm for KTM 50 SX Pro Junior LC 2001-2007

Easy to use cylinder hone that can attach to a standard hand drill or drill press. About this item 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. See more product details