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The Lyman 7777760 is a Flash Hole Uniformer Deburring Tool by Lyman that expertly eliminates inner flash hole burrs. This tool has a durable tool steel cutter which can be conveniently introduced into the flash hole via the case neck.
A distinguishing feature of this model is its adjustable stop collar, rendering it compatible with cases of all sizes. The process of burr removal is achieved by a simple clockwise rotation.
Moreover, this particular model boasts compatibility with calibers ranging from .22 to .45, thus bringing a level of versatility for its users.