Coal Mines are so dangerous
We just sent a few diamond drill bits to the mine today Asap.
And i actually service and manufacture the Directional down hole motors, the two Aussi contract drillers were using in the mine for the gas drainedge
They were employed buy Valley long wall industries an Aussi company
The motors are all made mostly from copper beryllium and stainless steel to prevent sparks and are driven buy water pressure.
Very sad day