Flexible Cylinder Hone Compatible Bore Diameter - Maximum 5 1/2 mm Compatible Firearm Caliber Not Applicable Stem Diameter 0.08 in Abrasive Length 1 1/2 in Overall Length 8 in Abrasive Material Silicon Carbide Grit 240 Compatible Tool Type CNC Machine Drill Drill Press Operating Speed - Maximum 1 200 RPM Primary Material Application Stainless Steel End Marking Color Not Applicable Grade Fine Stem Length 1 1/2 in Stem Marking Color Not Applicable