Precisely Finishes Gas Block/Front Sight Tower Pin Holes
High-speed steel reamer is precisely tapered to match the shape of the standard A2 gas block retaining pin. Cleans up existing holes or tapers newly drilled holes to ensure a positive, secure fit and precise alignment of the sight tower.
AR-15, Issue:11, Page:088
Big Book Catalog, Issue:72, Page:093
SPECS: Reamer – High-speed steel, 2/0 reamer. Tapers from .1137" (2.8mm) O.D. at the tip to .1462" (3.7mm) O.D. near the shank. Handle – 2¾" (70mm) long, 5⁄8" (16mm) diameter.