A downhole borehole cleaning apparatus for recirculating drill cuttings contained in a downhole borehole, the downhole borehole cleaning apparatus comprising:- a body comprising an outer surface for contacting downhole fluid containing said drill cuttings, wherein the downhole fluid comprises a certain pressure within the downhole borehole; wherein the body further comprises pair of bearing surfaces (30U, 30D) which are longitudinally spaced apart along the longitudinal axis of the body, and wherein the pair of bearing surfaces comprise substantially the same maximum outer diameter, and said maximum outer diameter of the bearings (30U, 30D) is greater than the maximum outer diameter of the rest of the body, wherein each of the pair of bearing surfaces comprises a substantially constant and un-interrupted diameter around its whole outer circumference for at least a portion of its longitudinal length; wherein the outer surface of the body further comprises a low pressure generation means located in between the two longitudinally spaced apart bearing surfaces (30U, 30D) for generating a region of lower pressure in the downhole fluid within that region compared to the said certain pressure; wherein the low pressure generation means comprises one or more formations provided on the outer surface of the body; wherein the one or more formations comprise a key direction angle surface portion of the outer surface of the body being arranged at an inclined angle to a longitudinal axis of the body, the key direction angle surface portion is arranged such that the enclosed angle between the bearing surface and the key direction angle surface portion comprises an angle of between 15 degrees and 135 degrees; wherein the apparatus comprises a drill cuttings recirculation zone surface formed on the outer surface of the body located between the two longitudinally spaced apart bearing surfaces (30U, 30D); wherein the drill cuttings recirculation zone surface comprises one or more grooves or scoops formed therein configured to catch drill cuttings within said one or more grooves or scoops and further configured to permit the drill cuttings to flow along said one or more grooves or scoops in an upstream to downstream direction; wherein the low pressure generation means is located upstream of the drill cuttings recirculation zone surface. a body comprising an outer surface for contacting downhole fluid containing said drill cuttings, wherein the downhole fluid comprises a certain pressure within the downhole borehole; wherein the body further comprises pair of bearing surfaces (30U, 30D) which are longitudinally spaced apart along the longitudinal axis of the body, and wherein the pair of bearing surfaces comprise substantially the same maximum outer diameter, and said maximum outer diameter of the bearings (30U, 30D) is greater than the maximum outer diameter of the rest of the body, wherein each of the pair of bearing surfaces comprises a substantially constant and un-interrupted diameter around its whole outer circumference for at least a portion of its longitudinal length; wherein the outer surface of the body further comprises a low pressure generation means located in between the two longitudinally spaced apart bearing surfaces (30U, 30D) for generating a region of lower pressure in the downhole fluid within that region compared to the said certain pressure; wherein the low pressure generation means comprises one or more formations provided on the outer surface of the body; wherein the one or more formations comprise a key direction angle surface portion of the outer surface of the body being arranged at an inclined angle to a longitudinal axis of the body, the key direction angle surface portion is arranged such that the enclosed angle between the bearing surface and the key direction angle surface portion comprises an angle of between 15 degrees and 135 degrees; wherein the apparatus comprises a drill cuttings recirculation zone surface formed on the outer surface of the body located between the two longitudinally spaced apart bearing surfaces (30U, 30D); wherein the drill cuttings recirculation zone surface comprises one or more grooves or scoops formed therein configured to catch drill cuttings within said one or more grooves or scoops and further configured to permit the drill cuttings to flow along said one or more grooves or scoops in an upstream to downstream direction; wherein the low pressure generation means is located upstream of the drill cuttings recirculation zone surface.