1-1/4" Compression Point Compression Points which is the first shaft

which is the first shaft to go into the ground with the compression point

Insert an allan wrench into one hole untill it seats in the allan screw on the opposite side of the hole in the point

Stab the digging bar into one of the pre-drilled 2” holes of the 2x6x8 board on the bottom of the trench

Secure the hook of the digging bar to the extraction chain

1-1/4" Compression Point Compression Points which is the first shaftThe compression point is the first part to go through the ground and is attached to the shaft. It breaks rocks, splits roots and other debris as it makes its way under the pavement and opens a hole larger than the shafts. The actual diameter of this part is 2" in. It will make a hole large enough to accommodate a 1 1 4" pipe with a coupling.