BC138400AO FLEX-HONE, 1.375 (34.9mm) bore, 8 OAL, 400 Grit, Aluminum Oxide (AO)
25 in, Abrasive Length 3 in, Overall Length 8 in, Abrasive Material Aluminum Oxide, Grit 400, Compatible Tool Type Brake Cylinder, Wheel Cylinder, Operating Speed - Maximum 1,000 RPM, Primary Material Application Stainless Steel, Compatible Bore Diameter - Minimum 1 3/8 in, End Marking Color Yellow, Stem Marking Color Black.