Let me tell you
First you need to buy a block of raw material, this one is tungsten
Then you will make a rough cut with milling or grinding into a shape, with some margin (this is very important)
Then you will use WEDM cut it into the complicated shape and precise size you wanted, takes about 4 hours
After that, you will use grinder to grind the flat face, takes about 1 hour
At last you will use CNC to tap the thread, takes about 1 hour
Ok, the procedure of processing this part is finished
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