Selection Advice
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HSS, cobalt HSS or carbide countersink - how to choose?
HSS suits general steel and non-ferrous metals with great value; cobalt HSS (HSS-E) with 5-8% cobalt resists heat and wear with 3x the life of standard HSS, ideal for stainless steel and high-temperature alloys; carbide offers the highest hardness for high-speed and hard material machining but is brittle. Lihao Technology specializes in cobalt HSS - 85% of imported performance at only 40% of the price.
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