Miniature Boring Bar Set - Left Hand Includes 2 each of the following... Neck Diameter Bore Depth Min Bore Diameter Insert Length Radial Angle 5 mm / 0.197" 0.708" 0.228" 0.114" 17° 6mm / 0.236" 0.945" 0.307" 0.150" 15° Features include... Ultra small boring bar with indexable inserts for holes smaller than 1/4" dia. New trigon shaped Cermet grade inserts for ultimate performance. Round shanks with longitudinal flats for proper radial positioning Shank diameter tolerance: + 0.000 - 0.001" Positive seating of carbide inserts High quality steel shank
