Cuts Popular "11\" Target Crown
Hardened steel, muzzle crowning tool cuts a slight (11? less than
square) target chamfer on barrels. Gives good rifling protection
without going too deep. 90? - 11? = 79?, hence the name. Eight,
precision-machined flutes give smooth, chatter-free cuts to help
eliminate extra lapping or stoning. ¼"-20 thread fits
Brownells muzzle chamfering handles. Use with our muzzle pilots
to ensure precise alignment with your bore. Available in ½"
and ¾" diameters to accommodate most rifle/handgun
Big Book Catalog, Issue:65, Page:473
New Product Supplement, Issue:581, Page:012
SPECS: Tool Steel, 23/8” (6cm) overall length, ½"
(1.3cm) or ¾" (1.9cm) O.D. ¼"-20 tpi.