Selection Myths
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Why do 90-degree countersinks vary so much in price?
Price differences come from: 1. Material - standard HSS vs M42 cobalt HSS (8% cobalt) vs carbide, 3-10x difference; 2. Coating - uncoated vs TiN vs TiAlN vs AlCrN vs nano-composite; 3. Precision - standard vs precision grade, runout differs 5-10x; 4. Brand and service. Lihao Technology cobalt HSS countersinks offer outstanding value at 85% of imported performance.
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