CBN Insert, 1/2" Round, 3/16" Thick, Double Sided, TITANIUM-NITRIDE COATED (CBN - Cubic Boron Nitride - SUPERABRASIVE). For engine block and head surfacing, Vertical Milling and Boring. CBN Insert, 1/2" Round, 3/16" Thick, Double Sided, Titanium-Nitri.
