GBD600320AO FLEX-HONE, 6.000" (152mm) bore, 17.5" OAL, 320 Grit, Aluminum Oxide (AO), Flex-Hone Tool, Mfr#: GBD600320AO

Flexible Cylinder Hone, Compatible Bore Diameter – Maximum 6 in, Compatible Firearm Caliber Not Applicable, Stem Diameter 0.42 in, Abrasive Length 6 1/4 in, Overall Length 17 1/2 in, Abrasive Material Aluminum Oxide, Grit 320, Operating Speed – Maximum 600 RPM, Primary Material Application Stainless Steel, Compatible Bore Diameter – Minimum 5 1/2 in, End Marking Color White, Stem Marking Color Black