Rifle Chamber Hone, Compatible Bore Diameter – Maximum Not Applicable, Compatible Firearm Caliber .25-06, Stem Diameter 0.14 in, Abrasive Length 2 1/2 in, Overall Length 12 in, Abrasive Material Silicon Carbide, Grit 400, Operating Speed – Maximum 1,200 RPM, Primary Material Application Stainless Steel, Compatible Bore Diameter – Minimum Not Applicable, End Marking Color Yellow, Grade Coarse, Stem Marking Color Not Applicable