leveling nut and flat washer assembly 46 on the underside of flange plate 22 and on the top side of flange plate 22 is a compression nut lock washer assembly 58 leveling of the mast tube may be achieved by adjusting nut position fig6 a 7 8 9 and 10 a 10 e illustrate various views of the axis port and reinforcement plates welded thereto fig6 a shows that the plates may extend into the inner body only and be welded where they just touch the outer cylindrical surface of the auger body fig7 shows that the plates may extend both partially into the interior and into the exterior and weldment typically is placed at the junction of the plates and the exterior of the pipe fig8 shows that weldment may extend only to the exterior of the pipe and may in one embodiment be square or rectangular fig9 is an elevational view of fig8 fig9 9 a and 9 b illustrate details of weldment where mating flange plate 42 joins near end 26 a of auger body 26 fig9 b shows that upper lip 26 c will be inserted about half the distance of the thickness of mating flange plate 42 fig9 a shows that in a preferred embodiment dual full pin welds will be applied typically about u00bd inch on the outside and 5 16 inch on the inside to help prevent overheating of the thin walled pipe by inserting the upper perimeter 26 c only halfway or half the distance of the thickness of the plate sufficient room is provided such that inner weld 44 a will not project above the top surface of mating plate 42 outer weld at the junction of.