This fine selection of hand tools fromLyman performs the three most importantsteps in achieving a clean, uniform primerpocket and flash hole in preparation forseating a new primer. Each tool featuresan unbreakable, comfortable, cushioned,ergonomic polyurethane handle. Flash Hole Uniformer removes burrs from the inside of the flash hole to ensureunobstructed passage of the spark to the powder for consistent ignition from oneround to the next. Insert into flash hole through the case mouth, and a quick,clockwise turn of the tool does the job. Adjustable stop collar allows use with anysize case, from .22 through .45 caliber.
Big Book Catalog, Issue:68, Page:528
Sinclair, Issue:5B, Page:005