The SiBore drill uses a waterless-boring method so there's no mud to deal with and little clean up. This package not only includes the SiBore sb431e, which is the best of both our sb216e and sb215e microbore models, but also the GeoRipper e/b. Three tools with one motor. This kit includes all the accessories of the 1" microbore model and the 2" and 4" augers plus extensions of our traditional model plus the minitrencher so you can trench up to 16" or 20" deep and 2" wide depending on the model. The SiBore/GeoRipper combo pack is so compact it will fit in the trunk of your car! this trencher and microbore auger can power through the toughest clay soils whether you are digging a trench or going under that sidewalk or patio. This combo pack is efficient and lightweight perfect for landscapers, sprinkler system installers, plumbers, electricians, fiber optic and cable installers, and tool rental companies.