A post driver and puller combo includes a hollow main cylinder capable of accommodating a fence post, and a post-pulling mechanism provided at an upper portion of the main cylinder and disposed transversely therethrough. The post-pulling mechanism is freely detachable from the main cylinder. A user can insert a fence post into the hollow main cylinder and hit the top of the fence post to drive it into the ground. To extract the post, the user places the main cylinder at one side of the post and uses the post-pulling mechanism to engage with the post so that it can be pulled out of the ground. The device is a combination of a fence post erection machine and a fence post extraction machine. The device is simple in structure, easy to assemble, light in weight, and easy to transport.

A helical pier with a spiral tip is disclosed. The helical pier is comprised of an elongated hollow shaft, one or more helical plates attached to and extending outward from the shaft, and the spiral tip. The spiral tip acts as an attack bit that contacts and penetrates the ground and subsurface soil layers prior to other parts of the helical pier. The spiral tip provides initial breakup of the ground where the helical pier is being driven. The spiral tip is comprised of a longitudinal edge and a spiral rim between a penetrating lead end and a terminating spiral end on the longitudinal edge.

Disclosed herein are systems and methods for sheet piling driver adapters. In a specific embodiment, a sheet piling driver adapter includes: a body, where the body includes: a cuboid rectangular shape and one or more holes; and one or more finger bars, where the finger bars include: a cuboid rectangular shape and one or more holes, and where the sheet piling driver adapter is configured to be releasably attached to a post pile driver and a sheet pile so the post driver can drive a sheet pile into the ground.

Disclosed herein are systems and methods for sheet piling driver adapters. In a specific embodiment, a sheet piling driver adapter includes: a body, where the body includes: a cuboid rectangular shape and one or more holes; and one or more finger bars, where the finger bars include: a cuboid rectangular shape and one or more holes, and where the sheet piling driver adapter is configured to be releasably attached to a post pile driver and a sheet pile so the post driver can drive a sheet pile into the ground.

An all-in-one driving and extracting tool for both driving and extracting T-posts for fences, and methods of extracting and driving T-posts using the all-in-one driving and extracting tool.

An all-in-one driving and extracting tool for both driving and extracting T-posts for fences, and methods of extracting and driving T-posts using the all-in-one driving and extracting tool.

A piledriving apparatus for driving stakes or posts into the ground includes a housing and a ram mounted in the housing. A head is attached to the ram and defines a cavity for receiving a stake. The ram is operable to drive the head against the stake to urge the stake into the ground. Grips for holding the apparatus by the hands of a user are described and claimed. Controls for directing the direction, force, and speed of a piston rod of the ram is disclosed and claimed.

A piledriving apparatus for driving stakes or posts into the ground includes a housing and a ram mounted in the housing. A head is attached to the ram and defines a cavity for receiving a stake. The ram is operable to drive the head against the stake to urge the stake into the ground. Grips for holding the apparatus by the hands of a user are described and claimed. Controls for directing the direction, force, and speed of a piston rod of the ram is disclosed and claimed.

A piledriving apparatus for driving stakes or posts into the ground includes a housing and a ram mounted in the housing. A head is attached to the ram and defines a cavity for receiving a stake. The ram is operable to drive the head against the stake to urge the stake into the ground. Grips for holding the apparatus by the hands of a user are described and claimed. Controls for directing the direction, force, and speed of a piston rod of the ram is disclosed and claimed.

A piledriving apparatus for driving stakes or posts into the ground includes a housing and a ram mounted in the housing. A head is attached to the ram and defines a cavity for receiving a stake. The ram is operable to drive the head against the stake to urge the stake into the ground. Grips for holding the apparatus by the hands of a user are described and claimed. Controls for directing the direction, force, and speed of a piston rod of the ram is disclosed and claimed.