The Sinclair Master Piloted Flash Hole Deburring Kit will work on 22 caliber through 50 caliber using the stainless steel Neck Pilots. This tool indexes off of the case mouth (trim length) to determine the correct depth of cut on the flashhole. Flashhole deburring is a one-time operation meant to remove burrs from the flashhole on the inside of the case helping to create more uniform ignition. Features: Tool steel cutter for clean cuts Large comfortable Sinclair Handle with stainless steel insert Change calibers by switching Sinclair stainless steel pilot Includes pilots for: 22 Caliber, 6mm, 25 Caliber, 6.5mm, 270 Caliber, 7mm, 30 Caliber, 32 Caliber, 8mm, Mfg: Sinclair International