CENTER CUTTING, M42, 8% PREMIUM COBALT. COBALT RODS MADE BY BOHLER.(GERMANY) FLUTES GROUND BY A WORLDCLASS ISO9002 FACTORY. ... M428% Cobalt End Mills Ball End. Qty: Add to cart. type: Cobalt End Mills. Vendor: CME Tools. Description: CENTER CUTTING, M42, 8% PREMIUM COBALT. COBALT RODS MADE BY BOHLER.(GERMANY) FLUTES GROUND BY A WORLD ...