Downhole tools, Nozzles, Bits – Ditch Witch JT922 User Manual
Page 110: Jt922 operator’s manual
JT922 Operator’s Manual
Systems and Equipment - 109
Downhole Tools
CMW
Downhole Tools
Nozzles
Nozzles control fluid flow from the pipe to the bore. Select nozzles that will supply at least the amount of
fluid per minute needed for the flow and pressure you will be using. A nozzle that will supply more fluid per
minute is recommended. See your Ditch Witch dealer for nozzle recommendations.
Bits
Selection
These charts are meant as a guideline only. No one bit works well in all conditions. See your Ditch Witch
dealer for soil conditions and bit recommendations for your area.
•
1 = best
•
2 = good
•
3 = fair
•
4 = not recommended
Bit
Sandy
Soil
Soft Soil
Medium
Soil
Hard
Soil
Rocky
Soil
Soft
Rock
Hard
Rock
Sand bit
1
2
4
4
4
4
4
Durabit
2
2
1
1
4
4
4
Tuff bit
2
1
1
1
2
3
4
Steep Taper Tuff bit
4
3
2
1
1
2
4
Barracuda bit
2
1
1
2
3
4
4
Steep Taper bit
4
3
2
1
1
2
4
Hard Surface bit
2
1
2
3
4
4
4
Glacier bit
4
4
4
3
1
2
4
Rhino bit
4
4
3
3
1
1
3
Jetting assembly
4
4
3
2
1
2
3
Rockmaster
4
4
3
2
1
1
1
Talon Rock bit
4
3
2
1
1
1
4