1979 LDH-70 1998 Texoma 600 Reduced LLDH-100 1982 LDH-80 Adcock Air Drill System 1990 Hain 8V71/4460-1 Reduced Air Drilling Unit Reduced 2004 LoDril Texoma 500 - 24 IMT AF18 03 Watson EDT7 Reduced 1986 LLDH-100 1997 H&T 635 Reduced 1962 LLDH-80 1980 Watson Attachment 1996 Soilmec R622 1997 Watson 3100 1998 Soilmec R825 1988 Watson 2500 1970 LDH40T 1981 Stratadyne Calweld MHT-100 1979 LDH-80 1970 LDH-80 1991 Lodril LLM60 1997 Watson 3100 2002 Soilmec 1998 LoDril 1996 H&T 635 2000 Watson 2500 2006 Soilmec