79Adeg Muzzle Crowning Cutter - 1/2'''' 79Adeg Crown Cutter

Hardened steel, muzzle crowning tool cuts a slight (11Adeg less than square) target chamfer on barrels. Gives good rifling protection without going too deep. 90Adeg - 11Adeg = 79Adeg, hence the name. Eight, precision-machined flutes give smooth, chatter-free cuts to help eliminate extra lapping or stoning. A 1/4"-20 thread fits Brownells muzzle chamfering handles. Use with our muzzle pilots to ensure precise alignment with your bore. Available in A 1/2" and A 3/4" diameters to accommodate most rifle/handgun barrel diameters. Mfg: Brownells SPECS: Tool Steel, 23/8" (6cm) overall length, A 1/2" (1.3cm) or A 3/4" (1.9cm) O.D. A 1/4"-20 tpi.