Ditch Witch JT30AT - Manual (Page 148)

JT30 /JT30 All Terrain Operator’s Manual
Systems and Equipment - 148
Downhole Tools
CMW
Backreamers
A backreamer enlarges the hole as pipe is pulled back through the bore. No one backreamer works well in
all conditions. These charts are meant as a guideline only. See your local Ditch Witch dealer for soil
conditions and backreamer recommendations for your area.
• 1 = best
• 2 = good
• 3 = fair
• 4 = not recommended
Backreamer Sandy
Soil
Soft Soil Medium
Soil
Hard
Soil
Rocky
Soil
Soft
Rock
Hard
Rock
Beavertail 3 1 1 1 3 4 4
Three Wing 4 3 3 2 1 1 4
Water Wing 4 3 2 1 2 2 4
Compact Fluted 1 1 2 2 2 3 4
Kodiak 4 3 3 2 1 2 4
Rockmaster 4 4 4 4 3 1 1
IMPORTANT: For soil definitions, see the chart on the previous page.