Minnovation have produced a comprehensive range of approved methane drainage equipment and accessories ranging from PCD Drill Bits, E & ETA drill rods, ETA water swivel stems, stuffing boxes, probe rods etc. Also available for methane drainage applications are our range of lightweight manual pipe drilling machines for use on underground methane, water and air pipe ranges allowing for easy installation of our tee pieces and pipe connectors. All our methane drainage products are UK Coal approved for underground mining use.