Cutter head for trenchless boring machine

A cutter for a trenchless boring apparatus having a length of a drill pipe terminating at a free end and said apparatus further having means for rotating said length of drill pipe, said cutter comprising:

• a mount having a mount first end and a mount second end with means for coupling said first end to said free end of said drill pipe and with said second end extending from said first end in a direction away from said drill pipe and said mount having a longitudinal axis extending axially from said drill pipe;
• at least a first plurality of cutting teeth each having a cutting edge;
• at least a first securing means for securing each of said teeth of said first plurality to said mount with said teeth arranged in at least a first path extending from a first path end adjacent said mount first end to a second path end adjacent said mount second end;
• said first path shaped for said first path end to be circumferentially offset from said second path end;
• said first securing means comprises a rigid support secured to said mount and having a support surface facing away from said axis and extending from said first path end to said second path end;
• said rigid support is a bar having a first end secured to said mount at said first path end with said bar spaced from said mount at a second end of said bar;
• said bar including a fluid pathway in communication with a fluid pathway within said mount, said bar further including a plurality of fluid outlets for ejecting fluid from said bar fluid pathway.