BC18M800AO FLEX-HONE, 0.709 (18mm) bore, 8 OAL, 800 Grit, Aluminum Oxide (AO)
Flexible Cylinder Hone, Compatible Bore Diameter - Maximum 18 mm, Compatible Firearm Caliber Not Applicable, Stem Diameter 0.19 in, Abrasive Length 2 1/2 in, Overall Length 8 in, Abrasive Material Aluminum Oxide, Grit 800, Compatible Tool Type Brake Cylinder, Wheel Cylinder, Operating Speed - Maximum 1,000 RPM, Primary Material Application Stainless Steel, Compatible Bore Diameter - Minimum 18 mm, End Marking Color Blue, Stem Marking Color Black.