apdepth of cut (mm)apdepth of cut (mm) WIDIA™ Inserts • Machining Aluminium Chipbreaker Geometries Negative Inserts AL1 For turning cast aluminium, light alloys, non-ferrous metals, high-melting metals, plastics, glass fibre, reinforced plastics, laminated board, carbon, and fine ceramics. N feed rate (mm) fn AL3 For cost-effective machining of aluminium, non-ferrous metals, and plastics. Extremely sharp cutting edges result in optimum part finishes with low cutting forces and short chips. Finishing of steel, stainless steel, and grey iron is possible with the coated grade HCK10™. N feed rate (mm) fn widia.com B151