In 2010 , Schramm , Inc. assisted in the rescue of 33 miners trapped for 69 days as a result of the Copiapó mining accident in Chile . The company built both drilling rigs that were key in saving the miners . The Schramm T685 WS truck mounted drill bored a hole that , on 22 August 2010 , was the first to break through to the 33 trapped men , confirming they had survived the accident . The company also manufactured the T130XD air core drilling rig owned by Geotec S.A. , a Chilean-American joint venture drilling company . The T130 heavy drill was chosen by the general contractor for Plan B , Chilean firm Drillers Supply S.A. , to widen one of the three wide and deep boreholes that were already used to keep the miners supplied using palomas . The T130 rig , in a three-way international race , was the first to open an escape shaft to the men
Copiapó mining accident
2010 Copiapó mining accident
Schramm Inc.