Review on Bosch HS2171 Spike Driver Hammer by Johnny Nguyen

I only have to give five stars because I don't use it as intended. Bought this thing as a post breaker to drive fiberglass posts into a series of fences. I believe this could work with T-Posts as well, if not better. It's very efficient and strong. I had to machine it to fit another style of jackhammer and the steel was slightly hardened and plated.