Application: --Cleaning trimming,veining and weld joint of casting, forging and weldment. --Finishing all kinds of metal molds. --Impeller passage of finishing processing. --A variety of mechanical parts chamfer,round and groove processing. --Inner hole surface of machinery parts finishing. --The process of various metal and nonmetal sculpture. Attention: Do Not Run Dry Wet drilling only. These are delicate, very small diameter diamond drill bits. The diamond coating is very thin. Can not take any abuse.
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