tool 17 and hence the tubular 3 for engagement with a tubular string held in a spider the clamp 2 is now released from the tubular 3 and the top drive 13 and hence apparatus 1 is now lifted clear of the tubular 3 the elevator 18 is now swung in line with the apparatus 1 by actuation of the piston and cylinders 19 and 20 fig1 d the top drive 13 is then lowered lowering the elevator 18 over the box 16 of the tubular 3 the slips in the elevator 18 are then set to take the weight of the entire tubular string the top drive is then raised slightly to enable the slips in the spider to be released and the top drive is then lowered to introduce the tubular string into the borehole referring to fig2 a to 2 d there is shown an apparatus which is generally identified by reference numeral 101 the apparatus 101 comprises an elevator 102 arranged at one end of bails 103 104 the bails 103 104 are movably attached to a top drive 105 via axles 106 which are located in eyes 107 in the other end of the bails 103 104 piston and cylinders 108 109.