Shotgun Barrel Hone Compatible Bore Diameter - Maximum 3/4 in Compatible Firearm Caliber 10 Gauge Stem Diameter 0.22 in Abrasive Length 3 in Overall Length 34 in Abrasive Material Silicon Carbide Grit 180 Compatible Tool Type CNC Machine Drill Drill Press Compatible Bore Diameter - Minimum Not Applicable End Marking Color Not Applicable Grade Medium Stem Marking Color Not Applicable