... or customized 2. K10-30, P10-30 Any grade with different size are available 3. High precision 4. Superior quality Hardness:HRA92 ... ,drilling bits,cold forging dies,bars, balls,burrs ,PCD blades,PCBN blades,ceramic inserts, and customized products etc.In the meantime , ... .4-14.691.5-922200-2400Fine grain alloy, used for processing heat-resistant alloy, high manganese steel materials, etc.ST5P3012.5 ...