Oil Well Drill-bits
One of the world's leading producer of diamond drill bits has Gold Plating Services re-finish actual customer's bits in either chrome, 24K gold or a combination of the two. These bits are then mounted and a plaque is added that describes where the bit was used. The two bits shown here are about 20 inches long and weigh around 100 lbs. The bits are a machined cast steel item that has actual diamond cutting inserts. The challenge in providing this service is in the polishing of the part before and after copper plating and in getting the nickel bright in the low current density areas.