Doofor Inc. presented it new rock drill, namely the Doofor DF538L in Intermat, Paris. The new drifter is classed as a 13 kW rock drill, which makes it a very effective miner for up to 57 mm diameter drill holes in hard rock. The rock drill has two OMM-type rotation motors. With two motors the rock drill can have – along with high RPM – a relatively high torque of 300 Nm. The rock drill is a new version of the well-known Doofor DF538S.