The Sinclair Piloted Flash Hole Deburring Tool will work on 22 caliber through 45 caliber using the stainless steel Neck Pilots. This tool indexes off of the case mouth (trim length) to determine the correct depth of cut. Features: Tool steel cutter for clean cuts Large comfortable Sinclair Handle with stainless steel insert Change calibers by switching Sinclair stainless steel pilots Great for use under powder Tool sold without pilots, order pilots separately by specific caliber These pilots work on our flash hole tool and our Case Neck Sorting Tool. Our pilots are precision machined from stainless steel on CNC turning centers to properly fit new, unfired case necks. Av Mfg: Sinclair International