Drives fence posts, sign posts, guard rails, median dividers, tent stakes, T-posts, pipe fence, and railroad ties with ease. ModelSM40 has a 40â€ drop hammer design. With this innovative design, you can achieve a full stroke with every cycle or utilize the short stroke feature to fine tune your depth. The Hammer DOES NOT operate with springs, hydraulic cylinder, or return line. Grapple option can be added to any model for a true one-person operation (does not include T-posts). The grapple option will allow the operator to grab the post off the ground, load it into the machine, and drive it in the ground without leaving the skid-steer seat. Tilt feature allows up to20Ëš in each direction. The hammer weight is 300 lbs. from the factory. Additional weight can be added for a total of 500 lbs.