ATI Stellram has added more than 20 new styles to its extensive range of inserts featuring the NL37 Nitro-Lok Ultra hard-wearing coating, specially designed for rapid machining of castings, forgings and near shape parts made from steels and alloyed steels. The NL37 grade can help boost cutting speeds by as much as 30 per cent and aids longer tool life because of its high heat and abrasion-resistant qualities, says the specialists in metal cutting solutions. It also offers better machine productivity and reduces environmental costs as it requires fewer tool changes and can be used without coolant. In addition, NL37 withstands edge breakdown, meaning high-quality surface fi nishes and less scrap material are achieved, and there is no need for extra processing after machining hardened steels. -