The Sinclair 8000 Series Uniformers are precision ground from one solidpiece of tungsten carbide, so there is no need to worry about changing thedepth of cut. These cutters will cut the primer pocket to a uniform depthand also square the bottom of the pocket in relationship to the case head.Uniformers are available in five sizes, one for large rifle, small rifle and/orsmall pistol, large pistol primer pockets, PPC/BR primer pockets, and BMGprimer pockets.
1911, Issue:11, Page:064
Big Book Catalog, Issue:68, Page:528
Sinclair, Issue:5B, Page:003