Briney Eccentric Bore Tooling, an innovative, proven end mill holder design dramatically reduces total indicator runout (TIR) typical of all end mill holders using a set screw or Weldon flat set screw. Improving the out-of-concentric condition of the tool holder bore from .0008" to .0002", the Briney holders feature an eccentric bore, imparting .0003" eccentricity in the direction of the set screw.
