A southwestern Pennsylvania drilling company has received a certificate of appreciation from the U.S. Department of Commerce for its role in helping to rescue 33 Chilean miners trapped more than 2,000 feet underground in October.
U.S. Rep. Bill Shuster presented the certificate to Center Rock Inc. president Brandon Fisher on Tuesday while touring the company with Department of Commerce officials.
Center Rock is in Berlin, about 70 miles southeast of Pittsburgh. It makes the 28-inch wide canisters that functioned as the bit for the drill used to reach the miners. Each canister contains four air hammers and four drill bits that move in tandem to dig through rock.
Fisher and other company officials spent 37 days with little sleep helping to drill the rescue shaft.